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Defense](https://www.paloaltonetworks.com/network-security/advanced-ip-defense?ts=markdown) * [Quantum Safe Security](https://www.paloaltonetworks.com/network-security/quantum-safe-security?ts=markdown) * [Next-Gen Trust Security](https://www.paloaltonetworks.com/network-security/next-gen-trust-security?ts=markdown) SASE [![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/prisma-sase-logo-nav.svg)](https://www.paloaltonetworks.com/sase?ts=markdown) [Secure Access (SASE)](https://www.paloaltonetworks.com/sase?ts=markdown) * [Prisma Access (ZTNA)](https://www.paloaltonetworks.com/sase/access?ts=markdown) * [SD-WAN](https://www.paloaltonetworks.com/sase/sd-wan?ts=markdown) * [Prisma Browser](https://www.paloaltonetworks.com/sase/prisma-browser?ts=markdown) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security?ts=markdown) * [Enterprise DLP](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention?ts=markdown) Security Operations [![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-logo-nav.svg)](https://www.paloaltonetworks.com/cortex?ts=markdown) [Security Operations](https://www.paloaltonetworks.com/cortex?ts=markdown) * [AI-Driven SOC](https://www.paloaltonetworks.com/cortex/cortex-xsiam?ts=markdown) * [Extended Detection \& Response](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown) * [Security Orchestration \& Automation](https://www.paloaltonetworks.com/cortex/cortex-xsoar?ts=markdown) * [Attack Surface Management](https://www.paloaltonetworks.com/cortex/cortex-xpanse?ts=markdown) * [Exposure Management](https://www.paloaltonetworks.com/cortex/exposure-management?ts=markdown) * [Email Security](https://www.paloaltonetworks.com/cortex/advanced-email-security?ts=markdown) * [Threat Intelligence Management](https://www.paloaltonetworks.com/cortex/threat-intel-management?ts=markdown) * [Agentic-first Automation](https://www.paloaltonetworks.com/cortex/agentix?ts=markdown) * [Identity Threat Detection and Response](https://www.paloaltonetworks.com/cortex/itdr?ts=markdown) [Endpoint Security](https://www.paloaltonetworks.com/cortex/endpoint-protection?ts=markdown) * [Endpoint Protection](https://www.paloaltonetworks.com/cortex/endpoint-protection?ts=markdown) * [Agentic Endpoint Security](https://www.paloaltonetworks.com/cortex/agentic-endpoint-security?ts=markdown) * [Ransomware Protection](https://www.paloaltonetworks.com/cortex/ransomware-protection?ts=markdown) * [Digital Forensics](https://www.paloaltonetworks.com/cortex/digital-forensics?ts=markdown) [Data Security](https://www.paloaltonetworks.com/cortex/data-security?ts=markdown) Cloud Security [![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-cloud-logo-nav.svg)](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown) [Application Security Overview](https://www.paloaltonetworks.com/cortex/cloud/application-security?ts=markdown) * [Application Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/application-security-posture-management?ts=markdown) * [Software Supply Chain Security](https://www.paloaltonetworks.com/cortex/cloud/software-supply-chain-security?ts=markdown) * [Infrastructure-as-Code (IaC) Security](https://www.paloaltonetworks.com/cortex/cloud/infrastructure-as-code-security?ts=markdown) * [Software Composition Analysis](https://www.paloaltonetworks.com/cortex/cloud/software-composition-analysis?ts=markdown) * [Secrets Security](https://www.paloaltonetworks.com/cortex/cloud/secrets-security?ts=markdown) * [Open Partner Ecosystem](https://www.paloaltonetworks.com/cortex/cloud/appsec-partner-ecosystem?ts=markdown) [Cloud Posture Security Overview](https://www.paloaltonetworks.com/cortex/cloud/cloud-posture-security?ts=markdown) * [Cloud Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/cloud-security-posture-management?ts=markdown) * [Cloud Infrastructure Entitlement Management](https://www.paloaltonetworks.com/cortex/cloud/cloud-infrastructure-entitlement-management?ts=markdown) * [Data Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/data-security-posture-management?ts=markdown) * [AI Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/ai-security-posture-management?ts=markdown) * [Vulnerability Management](https://www.paloaltonetworks.com/cortex/cloud/vulnerability-management?ts=markdown) * [Cloud Attack Surface Management](https://www.paloaltonetworks.com/cortex/cloud/attack-surface-management?ts=markdown) [Cloud Runtime Security Overview](https://www.paloaltonetworks.com/cortex/cloud/runtime-security?ts=markdown) * [Cloud Detection and Response](https://www.paloaltonetworks.com/cortex/cloud-detection-and-response?ts=markdown) * [Container \& Kubernetes Security](https://www.paloaltonetworks.com/cortex/cloud/kubernetes-and-container-security?ts=markdown) * [Cloud Workload Protection](https://www.paloaltonetworks.com/cortex/cloud/cloud-workload-protection?ts=markdown) * [API Security](https://www.paloaltonetworks.com/cortex/cloud/api-security?ts=markdown) * [Serverless Security](https://www.paloaltonetworks.com/cortex/cloud/serverless-security?ts=markdown) Observability ^NEW^ [![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cortex/xcor/cortex-xcor-logo-nav-2.svg)](https://www.paloaltonetworks.com/cortex/xcor?ts=markdown) Observability \& Remediation * [AI-Driven Observability](https://www.paloaltonetworks.com/cortex/xcor/ai-driven-observability?ts=markdown) * [Distributed Tracing](https://www.paloaltonetworks.com/cortex/xcor/distributed-tracing?ts=markdown) * [Log Management](https://www.paloaltonetworks.com/cortex/xcor/log-management?ts=markdown) * [Metrics Monitoring](https://www.paloaltonetworks.com/cortex/xcor/metrics-monitoring?ts=markdown) Identity Security [![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/idira-logo-nav.svg)](https://www.paloaltonetworks.com/idira?ts=markdown) [Human Identities](https://www.paloaltonetworks.com/idira/human?ts=markdown) * [Modern PAM](https://www.paloaltonetworks.com/idira/human/privileged-access-management?ts=markdown) * [Identity and Access Management](https://www.paloaltonetworks.com/idira/human/identity-and-access-management?ts=markdown) * [Endpoint Privilege Manager](https://www.paloaltonetworks.com/idira/human/endpoint-privilege-manager?ts=markdown) * [Identity Governance](https://www.paloaltonetworks.com/idira/human/identity-governance?ts=markdown) * [Workforce Password Management](https://www.paloaltonetworks.com/idira/human/workforce-password-management?ts=markdown) * [Vendor Privileged Access](https://www.paloaltonetworks.com/idira/human/vendor-privileged-access?ts=markdown) [Machine Identities](https://www.paloaltonetworks.com/idira/machine?ts=markdown) * [Secrets Management](https://www.paloaltonetworks.com/idira/machine/secrets-management?ts=markdown) * [Unified Secrets Governance](https://www.paloaltonetworks.com/idira/machine/unified-secrets-governance?ts=markdown) * [Application Credentials Delivery](https://www.paloaltonetworks.com/idira/machine/application-credentials-delivery?ts=markdown) [Agentic Identities](https://www.paloaltonetworks.com/idira/agentic?ts=markdown) [See All Products](https://www.paloaltonetworks.com/products/products-a-z?ts=markdown) * [![Overview icon](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/logo-default-orange.svg) Overview](#products-panel-0) * [![AI Security icon](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/icon-prisma-blue.svg) AI Security](#products-panel-1) * [![Network Security 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tools](https://www.paloaltonetworks.com/ai-security/prisma-airs?ts=markdown) [![Network Security icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/strata-logo-nav.svg) Network Security AI-powered NetSec with next-gen firewalls, inline defense and unified management](https://www.paloaltonetworks.com/network-security?ts=markdown) [![Security Operations icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-logo-nav.svg) Security Operations Stop cyberattackers with the industry's premier platform for autonomous security operations](https://www.paloaltonetworks.com/cortex?ts=markdown) [![Observability \& Remediation NEW icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cortex/xcor/cortex-xcor-logo-nav-2.svg) Observability \& Remediation ^NEW^ Prevent downtime with the AI-driven platform that delivers autonomous remediation](https://www.paloaltonetworks.com/cortex/xcor?ts=markdown) [![SASE icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/prisma-sase-logo-nav.svg) SASE Protect with AI, secure AI use and operate with AI using agentic Prisma SASE](https://www.paloaltonetworks.com/sase?ts=markdown) [![Identity Security icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/idira-logo-nav.svg) Identity Security Identity security platform to secure every identity: human, machine and agentic](https://www.paloaltonetworks.com/idira?ts=markdown) [![Cloud Security icon](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-cloud-logo-nav.svg) Cloud Security Prevent risks from code to cloud with the leading agentic cloud security platform](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown) [![AI Security logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/prisma-AIRS-logo-nav.svg)](https://www.paloaltonetworks.com/ai-security/prisma-airs?ts=markdown) [AI Security Platform](https://www.paloaltonetworks.com/ai-security/prisma-airs?ts=markdown) * [AI Gateway](https://www.paloaltonetworks.com/ai-security/ai-gateway?ts=markdown) * [AI Supply Chain Security](https://www.paloaltonetworks.com/ai-security/ai-supply-chain-security?ts=markdown) * [AI Red Teaming](https://www.paloaltonetworks.com/ai-security/ai-red-teaming?ts=markdown) * [AI Runtime Security](https://www.paloaltonetworks.com/ai-security/ai-runtime-security?ts=markdown) * [Agent Identity Security](https://www.paloaltonetworks.com/ai-security/agent-identity-security?ts=markdown) * [AI Posture Management](https://www.paloaltonetworks.com/prisma/cloud/ai-spm?ts=markdown) * [Agentic Endpoint Security](https://www.paloaltonetworks.com/cortex/agentic-endpoint-security?ts=markdown) Secure GenAI Tools * [Prisma Browser](https://www.paloaltonetworks.com/sase/prisma-browser?ts=markdown) [![Network Security logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/strata-logo-nav.svg)](https://www.paloaltonetworks.com/network-security?ts=markdown) [Secure the Network](https://www.paloaltonetworks.com/network-security/next-generation-firewall?ts=markdown) * [Hardware Firewalls](https://www.paloaltonetworks.com/network-security/hardware-firewall-innovations?ts=markdown) * [Software Firewalls](https://www.paloaltonetworks.com/network-security/software-firewalls?ts=markdown) * [Strata Cloud Manager](https://www.paloaltonetworks.com/network-security/strata-cloud-manager?ts=markdown) * [OT / Industrial Security](https://www.paloaltonetworks.com/network-security/ot-security-solution?ts=markdown) * [Device \& IoT Security](https://www.paloaltonetworks.com/network-security/device-security?ts=markdown) * [5G Security](https://www.paloaltonetworks.com/network-security/5g-security?ts=markdown) * [Managed Firewalls - Azure](https://www.paloaltonetworks.com/network-security/cloud-ngfw-for-azure?ts=markdown) * [Managed Firewalls - AWS](https://www.paloaltonetworks.com/network-security/cloud-ngfw?ts=markdown) [Cloud-Delivered Security Services](https://www.paloaltonetworks.com/network-security/security-subscriptions?ts=markdown) * [Advanced Threat Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention?ts=markdown) * [Advanced URL Filtering](https://www.paloaltonetworks.com/network-security/advanced-url-filtering?ts=markdown) * [Advanced WildFire](https://www.paloaltonetworks.com/network-security/advanced-wildfire?ts=markdown) * [Advanced DNS Security](https://www.paloaltonetworks.com/network-security/advanced-dns-security?ts=markdown) * [Advanced IP Defense](https://www.paloaltonetworks.com/network-security/advanced-ip-defense?ts=markdown) * [Quantum Safe Security](https://www.paloaltonetworks.com/network-security/quantum-safe-security?ts=markdown) * [Next-Gen Trust Security](https://www.paloaltonetworks.com/network-security/next-gen-trust-security?ts=markdown) [![SASE logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/prisma-sase-logo-nav.svg)](https://www.paloaltonetworks.com/sase?ts=markdown) [Secure Access (SASE)](https://www.paloaltonetworks.com/sase?ts=markdown) * [Prisma Access (ZTNA)](https://www.paloaltonetworks.com/sase/access?ts=markdown) * [SD-WAN](https://www.paloaltonetworks.com/sase/sd-wan?ts=markdown) * [Prisma Browser](https://www.paloaltonetworks.com/sase/prisma-browser?ts=markdown) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security?ts=markdown) * [Enterprise DLP](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention?ts=markdown) [![Security Operations logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-logo-nav.svg)](https://www.paloaltonetworks.com/cortex?ts=markdown) [Security Operations](https://www.paloaltonetworks.com/cortex?ts=markdown) * [AI-Driven SOC](https://www.paloaltonetworks.com/cortex/cortex-xsiam?ts=markdown) * [Extended Detection \& Response](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown) * [Security Orchestration \& Automation](https://www.paloaltonetworks.com/cortex/cortex-xsoar?ts=markdown) * [Attack Surface Management](https://www.paloaltonetworks.com/cortex/cortex-xpanse?ts=markdown) * [Exposure Management](https://www.paloaltonetworks.com/cortex/exposure-management?ts=markdown) * [Email Security](https://www.paloaltonetworks.com/cortex/advanced-email-security?ts=markdown) * [Threat Intelligence Management](https://www.paloaltonetworks.com/cortex/threat-intel-management?ts=markdown) * [Agentic-first Automation](https://www.paloaltonetworks.com/cortex/agentix?ts=markdown) * [Identity Threat Detection and Response](https://www.paloaltonetworks.com/cortex/itdr?ts=markdown) [Endpoint Security](https://www.paloaltonetworks.com/cortex/endpoint-protection?ts=markdown) * [Endpoint Protection](https://www.paloaltonetworks.com/cortex/endpoint-protection?ts=markdown) * [Agentic Endpoint Security](https://www.paloaltonetworks.com/cortex/agentic-endpoint-security?ts=markdown) * [Ransomware Protection](https://www.paloaltonetworks.com/cortex/ransomware-protection?ts=markdown) * [Digital Forensics](https://www.paloaltonetworks.com/cortex/digital-forensics?ts=markdown) [Data Security](https://www.paloaltonetworks.com/cortex/data-security?ts=markdown) [![Cloud Security logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/cortex-cloud-logo-nav.svg)](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown) [Application Security Overview](https://www.paloaltonetworks.com/cortex/cloud/application-security?ts=markdown) * [Application Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/application-security-posture-management?ts=markdown) * [Software Supply Chain Security](https://www.paloaltonetworks.com/cortex/cloud/software-supply-chain-security?ts=markdown) * [Infrastructure-as-Code (IaC) Security](https://www.paloaltonetworks.com/cortex/cloud/infrastructure-as-code-security?ts=markdown) * [Software Composition Analysis](https://www.paloaltonetworks.com/cortex/cloud/software-composition-analysis?ts=markdown) * [Secrets Security](https://www.paloaltonetworks.com/cortex/cloud/secrets-security?ts=markdown) * [Open Partner Ecosystem](https://www.paloaltonetworks.com/cortex/cloud/appsec-partner-ecosystem?ts=markdown) [Cloud Posture Security Overview](https://www.paloaltonetworks.com/cortex/cloud/cloud-posture-security?ts=markdown) * [Cloud Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/cloud-security-posture-management?ts=markdown) * [Cloud Infrastructure Entitlement Management](https://www.paloaltonetworks.com/cortex/cloud/cloud-infrastructure-entitlement-management?ts=markdown) * [Data Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/data-security-posture-management?ts=markdown) * [AI Security Posture Management](https://www.paloaltonetworks.com/cortex/cloud/ai-security-posture-management?ts=markdown) * [Vulnerability Management](https://www.paloaltonetworks.com/cortex/cloud/vulnerability-management?ts=markdown) * [Cloud Attack Surface Management](https://www.paloaltonetworks.com/cortex/cloud/attack-surface-management?ts=markdown) [Cloud Runtime Security Overview](https://www.paloaltonetworks.com/cortex/cloud/runtime-security?ts=markdown) * [Cloud Detection and Response](https://www.paloaltonetworks.com/cortex/cloud-detection-and-response?ts=markdown) * [Container \& Kubernetes Security](https://www.paloaltonetworks.com/cortex/cloud/kubernetes-and-container-security?ts=markdown) * [Cloud Workload Protection](https://www.paloaltonetworks.com/cortex/cloud/cloud-workload-protection?ts=markdown) * [API Security](https://www.paloaltonetworks.com/cortex/cloud/api-security?ts=markdown) * [Serverless Security](https://www.paloaltonetworks.com/cortex/cloud/serverless-security?ts=markdown) [![Observability NEW logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cortex/xcor/cortex-xcor-logo-nav-2.svg)](https://www.paloaltonetworks.com/cortex/xcor?ts=markdown) Observability \& Remediation * [AI-Driven Observability](https://www.paloaltonetworks.com/cortex/xcor/ai-driven-observability?ts=markdown) * [Distributed Tracing](https://www.paloaltonetworks.com/cortex/xcor/distributed-tracing?ts=markdown) * [Log Management](https://www.paloaltonetworks.com/cortex/xcor/log-management?ts=markdown) * [Metrics Monitoring](https://www.paloaltonetworks.com/cortex/xcor/metrics-monitoring?ts=markdown) [![Identity Security logo](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/logos/nav/idira-logo-nav.svg)](https://www.paloaltonetworks.com/idira?ts=markdown) [Human Identities](https://www.paloaltonetworks.com/idira/human?ts=markdown) * [Modern PAM](https://www.paloaltonetworks.com/idira/human/privileged-access-management?ts=markdown) * [Identity and Access Management](https://www.paloaltonetworks.com/idira/human/identity-and-access-management?ts=markdown) * [Endpoint Privilege Manager](https://www.paloaltonetworks.com/idira/human/endpoint-privilege-manager?ts=markdown) * [Identity Governance](https://www.paloaltonetworks.com/idira/human/identity-governance?ts=markdown) * [Workforce Password Management](https://www.paloaltonetworks.com/idira/human/workforce-password-management?ts=markdown) * [Vendor Privileged Access](https://www.paloaltonetworks.com/idira/human/vendor-privileged-access?ts=markdown) [Machine Identities](https://www.paloaltonetworks.com/idira/machine?ts=markdown) * [Secrets 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[What Is Data Security? \[Definition, Overview, \& Why It Matters\]](https://www.paloaltonetworks.com/cyberpedia/what-is-data-security?ts=markdown) Table of contents * [Why does data security matter?](#why-does-data-security-matter) * [What makes data security complex in practice?](#what-makes-data-security-complex-in-practice) * [What are the main approaches to data security?](#what-are-the-main-approaches-to-data-security) * [What regulations, standards, and frameworks guide data security?](#what-regulations-standards-and-frameworks-guide-data-security) * [Comparing data security with related security domains](#comparing-data-security-with-related-security-domains) * [Data security FAQs](#data-security-faqs) # What Is Data Security? \[Definition, Overview, \& Why It Matters\] 8 min. read Table of contents * [Why does data security matter?](#why-does-data-security-matter) * [What makes data security complex in practice?](#what-makes-data-security-complex-in-practice) * [What are the main approaches to data security?](#what-are-the-main-approaches-to-data-security) * [What regulations, standards, and frameworks guide data security?](#what-regulations-standards-and-frameworks-guide-data-security) * [Comparing data security with related security domains](#comparing-data-security-with-related-security-domains) * [Data security FAQs](#data-security-faqs) 1. Why does data security matter? * [1. Why does data security matter?](#why-does-data-security-matter) * [2. What makes data security complex in practice?](#what-makes-data-security-complex-in-practice) * [3. What are the main approaches to data security?](#what-are-the-main-approaches-to-data-security) * [4. What regulations, standards, and frameworks guide data security?](#what-regulations-standards-and-frameworks-guide-data-security) * [5. Comparing data security with related security domains](#comparing-data-security-with-related-security-domains) * [6. Data security FAQs](#data-security-faqs) Data security is the practice of protecting digital information from unauthorized access, corruption, or loss. It involves implementing technologies, tools, and policies to ensure data remains safe throughout its lifecycle. Data security includes methods like encryption, access controls, and regular auditing to prevent breaches and ensure compliance with regulations. ## Why does data security matter? ![Diagram titled 'Importance of Data Security,' with four sections surrounding a central diamond. The first section, labeled '1,' focuses on safeguarding sensitive information. The second section, labeled '2,' emphasizes mitigating risks and vulnerabilities. The third section, labeled '3,' highlights maintaining customer trust and loyalty. The fourth section, labeled '4,' is about compliance with regulation.](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/what-is-data-security/new/Importance-of-data-security.png "Diagram titled 'Importance of Data Security,' with four sections surrounding a central diamond. The first section, labeled '1,' focuses on safeguarding sensitive information. The second section, labeled '2,' emphasizes mitigating risks and vulnerabilities. The third section, labeled '3,' highlights maintaining customer trust and loyalty. The fourth section, labeled '4,' is about compliance with regulation.") Data security matters because it protects sensitive information from theft, corruption, or unauthorized access. Organizations rely on it to safeguard customer data, intellectual property, and other business-critical assets. The financial stakes are high. [Data breaches](https://www.paloaltonetworks.com/cyberpedia/data-breach) are becoming more frequent. And the costs continue to rise. [IBM's 2025 Cost of a Data Breach Report](https://www.ibm.com/reports/data-breach) found the global average cost of a data breach reached $4.44 million per incident. In the United States, the average was more than double at $10.22 million. Regulations add another layer. Laws such as GDPR and HIPAA require organizations to follow strict requirements for protecting data. Non-compliance can result in significant penalties and legal exposure. AI has also raised the bar. These systems depend on massive datasets for training and operation. If the data is tampered with, exposed, or otherwise insecure, it can corrupt the model. That can result in biased, unreliable, or even harmful outputs. * 86% of incidents Unit 42 responded to in 2024 involved business disruption, ranging from downtime to reputational damage. * Speed of data theft: In one in five cases (19%), attackers exfiltrated data in less than one hour of compromise. Median time to exfiltration is about two days --- far faster than many organizations' detection timelines. [- Unit 42 Global Incident Response Report 2025](https://www.paloaltonetworks.com/resources/research/unit-42-incident-response-report) Essentially: Data security protects against immediate risks like breaches and fines. But it also creates the conditions for long-term trust and safe use of technologies like AI. So, what are the benefits of data security? Here's what strong data security practices provide: ![The image is a semi-circular infographic titled 'Benefits of data security' in bold black text at the bottom center. Nine benefits are shown around the arc with circular icons above short text labels. Starting from the left, a gray icon with a shield and gear represents 'Prevents data tampering.' Below it, a light gray icon with a lock represents 'Protects sensitive information.' Further left, a dark gray icon with a folder and eye symbol represents 'Reduces shadow data exposure.' Moving upward, a teal icon with a shield and checkmark represents 'Protects the company's reputation.' At the top center, an orange icon with a dollar sign and coins represents 'Avoids additional costs.' To the right, a blue icon with a bar chart represents 'Provides competitive advantage.' Continuing right, a turquoise icon with a thumbs-up symbol represents 'Maintains customer trust \& confidence.' Below it, a green icon with a clipboard and checkmark represents 'Ensures legal \& regulatory compliance.' Finally, a gray icon with a database and connected nodes represents 'Supports safe data use in AI \& analytics.' Each icon is connected to the title by thin dotted lines forming a half-circle layout.](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/what-is-data-security/new/Benefits-of-data-security.png "The image is a semi-circular infographic titled 'Benefits of data security' in bold black text at the bottom center. Nine benefits are shown around the arc with circular icons above short text labels. Starting from the left, a gray icon with a shield and gear represents 'Prevents data tampering.' Below it, a light gray icon with a lock represents 'Protects sensitive information.' Further left, a dark gray icon with a folder and eye symbol represents 'Reduces shadow data exposure.' Moving upward, a teal icon with a shield and checkmark represents 'Protects the company's reputation.' At the top center, an orange icon with a dollar sign and coins represents 'Avoids additional costs.' To the right, a blue icon with a bar chart represents 'Provides competitive advantage.' Continuing right, a turquoise icon with a thumbs-up symbol represents 'Maintains customer trust & confidence.' Below it, a green icon with a clipboard and checkmark represents 'Ensures legal & regulatory compliance.' Finally, a gray icon with a database and connected nodes represents 'Supports safe data use in AI & analytics.' Each icon is connected to the title by thin dotted lines forming a half-circle layout.") * Protects sensitive information * Prevents data tampering * Protects the company's reputation * Ensures legal and regulatory compliance * Maintains customer trust and confidence * Provides competitive advantage * Avoids additional costs * Supports safe data use in AI and analytics * Reduces shadow data exposure Ultimately, data security isn't only about preventing breaches. It's about staying compliant, protecting trust, and keeping pace with how fast data is created and exploited today. ## What makes data security complex in practice? On paper, the controls look simple. Encrypt data. Set access rules. Back it up. In practice, keeping data secure across a modern environment is harder than it seems. Here's why. ![The image is a circular infographic with a segmented ring surrounding the bold black title 'Data security' in the center. Around the ring, six challenges are labeled with icons. At the top left, a gray icon of a folder with an eye represents 'Data movement \& shadow data.' Directly below it, a gray silhouette of a person running represents 'Fast-moving attackers.' At the bottom left, two overlapping gray circles represent 'Human \& organizational gaps.' On the top right, a gray icon of a magnifying glass over gears represents 'Ongoing upkeep of controls.' Below it, a gray icon of a checklist represents 'Overlapping regulatory requirements.' Each label is linked to its segment of the colored ring, which is divided into red, orange, yellow, and blue sections. At the bottom right, bold black text reads 'Why data security is difficult in practice.'](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/what-is-data-security/new/Why-data-security-is-difficult-in-practice.png "The image is a circular infographic with a segmented ring surrounding the bold black title 'Data security' in the center. Around the ring, six challenges are labeled with icons. At the top left, a gray icon of a folder with an eye represents 'Data movement & shadow data.' Directly below it, a gray silhouette of a person running represents 'Fast-moving attackers.' At the bottom left, two overlapping gray circles represent 'Human & organizational gaps.' On the top right, a gray icon of a magnifying glass over gears represents 'Ongoing upkeep of controls.' Below it, a gray icon of a checklist represents 'Overlapping regulatory requirements.' Each label is linked to its segment of the colored ring, which is divided into red, orange, yellow, and blue sections. At the bottom right, bold black text reads 'Why data security is difficult in practice.'") **Data doesn't sit still.** It moves across SaaS apps, cloud storage, developer sandboxes, laptops, and vendor systems. New copies appear as teams export, transform, and test. Which means inventories drift. Discovery tools help. But they lag when data is duplicated outside official workflows. That's where "shadow data" creeps in and breaks assumptions about coverage. **Controls depend on upkeep.** Encryption is only as strong as key handling. IAM only works if privileges match the job someone does today, not last quarter. Backups only help if they restore cleanly and within the window the business expects. None of that is a one-time project. It's ongoing hygiene. And as systems and teams change, the effort compounds. **Requirements overlap.** Different data sets trigger different obligations. Customer records. Payment data. Health information. Each carries its own handling, retention, and reporting rules. So organizations layer controls to satisfy multiple frameworks at once. The result can be operational friction: more policies to enforce, more audits to pass, more places a small gap can matter. **Attackers move fast.** Incidents aren't always slow burns. In a material share of cases, data is exfiltrated within hours of initial compromise. The median time to theft is often days, not weeks. Which means detection and response timelines matter as much as preventive controls. If a control is misconfigured, there isn't much slack before it shows. **People create edges.** Real work happens in spreadsheets, exports, notebook snapshots, and test databases. Contractors need access. BYOD devices connect from anywhere. Each exception adds a little risk. None looks dramatic on its own. Together they create blind spots that policy alone won't close. In other words: the hard part isn't knowing what to do. It's keeping the right controls aligned with where the data actually lives, who can reach it, and how quickly things can go wrong. | ***Further reading:*** * [*What Is Shadow Data?*](https://www.paloaltonetworks.com/cyberpedia/shadow-data) * [*What Is Data Sprawl?*](https://www.paloaltonetworks.com/cyberpedia/data-sprawl) * [*What Is Data Movement?*](https://www.paloaltonetworks.com/cyberpedia/data-movement) ## What are the main approaches to data security? ![The diagram is titled 'Data security approaches' and shows four main categories in a circular layout with surrounding branches. At the center are four colored circles: 'Foundational protections' in teal, 'Visibility \& governance' in blue, 'Environment-specific safeguards' in purple, and 'Response \& resiliency' in green. Branching from 'Foundational protections' are 'Encryption,' 'Access control,' 'Authentication,' 'Data masking,' 'Data erasure,' 'Tokenization,' 'Key management systems (KMS),' and 'Identity \& access management (IAM).' From 'Visibility \& governance' extend 'Data classification,' 'Data loss prevention (DLP),' 'Data security posture management (DSPM),' and 'Governance, risk, \& compliance (GRC).' From 'Environment-specific safeguards' extend 'Cloud security,' 'Network access control (NAC),' 'Endpoint protection,' and 'Zero Trust.' From 'Response \& resiliency' extend 'Data resiliency \& disaster recovery' and 'Incident response.'](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/what-is-data-security/new/Data-security-approaches.png "The diagram is titled 'Data security approaches' and shows four main categories in a circular layout with surrounding branches. At the center are four colored circles: 'Foundational protections' in teal, 'Visibility & governance' in blue, 'Environment-specific safeguards' in purple, and 'Response & resiliency' in green. Branching from 'Foundational protections' are 'Encryption,' 'Access control,' 'Authentication,' 'Data masking,' 'Data erasure,' 'Tokenization,' 'Key management systems (KMS),' and 'Identity & access management (IAM).' From 'Visibility & governance' extend 'Data classification,' 'Data loss prevention (DLP),' 'Data security posture management (DSPM),' and 'Governance, risk, & compliance (GRC).' From 'Environment-specific safeguards' extend 'Cloud security,' 'Network access control (NAC),' 'Endpoint protection,' and 'Zero Trust.' From 'Response & resiliency' extend 'Data resiliency & disaster recovery' and 'Incident response.'") | ***Further reading:** [Top 12 Data Security Best Practices](https://www.paloaltonetworks.com/cyberpedia/data-security-best-practices)* ### **Foundational protections** (basic controls every environment needs) Foundational protections are the baseline of any data security program. They include methods like encryption, access rules, and authentication --- along with the systems that keep those methods consistent at scale. Encryption keeps information unreadable if stolen, but only works if keys are created and managed properly. [Access control](https://www.paloaltonetworks.com/cyberpedia/access-control) and authentication decide who can see or change data, while IAM ties those decisions to roles and reviews them over time. Other measures, like masking or tokenization, reduce exposure when real data isn't needed, and secure erasure ensures information is gone when it's no longer required. In short, these are the essential safeguards every environment needs before higher-level controls can be effective. | ***Further reading:*** * [*What Is Data Encryption?*](https://www.paloaltonetworks.com/cyberpedia/data-encryption) * [*Data Security Policies: Why They Matter and What They Contain*](https://www.paloaltonetworks.com/cyberpedia/data-security-policy) ### **Visibility and governance** (knowing where data is and how it's handled) Visibility and governance make sure you actually know what data exists and how it's being used. Without that, protections are guesswork. It starts with classification. Label information based on sensitivity and criticality, then tie those labels to policies so they mean something in practice. From there, DLP monitors how data moves and blocks risky transfers. DSPM fills the cloud and SaaS gap, mapping shadow data that older tools can't see. Finally, GRC frameworks connect all of this to regulations and internal rules so oversight stays consistent and defensible. | ***Further reading:*** * [*What Is Data Discovery?*](https://www.paloaltonetworks.com/cyberpedia/data-discovery) * [*What Is Data Classification?*](https://www.paloaltonetworks.com/cyberpedia/data-classification) * [*What Is Data Governance?*](https://www.paloaltonetworks.com/cyberpedia/data-governance) * [*What Is Data Access Governance?*](https://www.paloaltonetworks.com/cyberpedia/data-access-governance) * [*What Is DSPM?*](https://www.paloaltonetworks.com/cyberpedia/what-is-dspm) * [*What Is DLP (Data Loss Prevention)? | Guide to DLP Security*](https://www.paloaltonetworks.com/cyberpedia/what-is-data-loss-prevention-dlp) ### **Environment-specific safeguards** (securing different layers of the enterprise) Foundational protections aren't enough once data starts moving. Every device, network, and cloud platform adds new risks and new entry points for attackers. Endpoints are the first line --- laptops, phones, and servers need protection against [malware](https://www.paloaltonetworks.com/cyberpedia/what-is-malware) and [ransomware](https://www.paloaltonetworks.com/cyberpedia/what-is-ransomware). NAC builds on that by deciding which devices can connect in the first place, though it can be tricky in BYOD or hybrid setups. In the cloud, security focuses on stopping misconfigurations, unauthorized access, and [data leaks](https://www.paloaltonetworks.com/cyberpedia/data-leak). And across everything, [Zero Trust](https://www.paloaltonetworks.com/cyberpedia/what-is-a-zero-trust-architecture) applies the rule of "never trust, always verify," requiring constant checks to prevent [lateral movement](https://www.paloaltonetworks.com/cyberpedia/what-is-lateral-movement). Together, these safeguards extend protection into the places where data actually lives and moves. | ***Further reading:*** * [*What Is Cloud Data Protection?*](https://www.paloaltonetworks.com/cyberpedia/what-is-cloud-data-protection) * [*What Is Cloud Data Loss Prevention?*](https://www.paloaltonetworks.com/cyberpedia/cloud-data-loss-prevention) * [*What Is Database Security?*](https://www.paloaltonetworks.com/cyberpedia/database-security) ### **Response and resiliency** (what to do when things go wrong) Even strong defenses can't stop every incident. Data may still be lost, stolen, or corrupted. Response and resiliency measures limit the damage and get operations back on track. Backups and disaster recovery ensure critical data can be restored after an outage or breach, but only if they're tested and reliable. [Incident response](https://www.paloaltonetworks.com/cyberpedia/what-is-incident-response) adds structure when something goes wrong --- defining clear roles, coordinating technical and business teams, and guiding containment and remediation. The goal is simple: Keep downtime and disruption to a minimum. | ***Further reading:*** * [*What Is Data Detection \& Response (DDR)?*](https://www.paloaltonetworks.com/cyberpedia/data-detection-response-ddr) * [*What Is Data Exfiltration?*](https://www.paloaltonetworks.com/cyberpedia/data-exfiltration) * [*What Is a Data Risk Assessment?*](https://www.paloaltonetworks.com/cyberpedia/data-risk-assessment) ## What regulations, standards, and frameworks guide data security? Data security isn't guided by a single rulebook. Organizations are accountable to a mix of laws, standards, and frameworks that define how to protect sensitive information. The specifics vary by industry and region. But the objectives are consistent: * Safeguard business-critical and [personal data.](https://www.paloaltonetworks.com/cyberpedia/personal-data) * Ensure accountability in how data is collected, stored, and shared. * Minimize the risk of breaches and other security incidents. Compliance is more than meeting a checklist. It requires implementing technical and administrative safeguards --- like encryption, access controls, and auditing --- and maintaining them over time. Done well, compliance not only helps avoid penalties but also builds trust with customers and partners. Below, we'll dive into the details of some of the most common data security regulations and frameworks: | Data security regulations, standards, and frameworks | |------------------------------------------------------| | Category | Name | Description | Applicability | |---------------|-------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------| | **Law** | [General Data Protection Regulation (GDPR)](https://eur-lex.europa.eu/eli/reg/2016/679/2016-05-04) | Protects personal data of EU citizens, requires consent for data processing, and enforces strict security measures. Violations can lead to fines of up to 4% of annual revenue or €20 million. | Organizations processing personal data of EU residents. | | **Law** | [California Consumer Privacy Act (CCPA)](https://oag.ca.gov/privacy/ccpa) | Gives California residents control over their personal data, mandates transparency on data practices, and allows opt-out of third-party data sharing. | Businesses handling personal data of California residents. | | **Law** | [Health Insurance Portability and Accountability Act (HIPAA)](https://www.hhs.gov/hipaa/index.html) | Protects patient health data, ensures secure medical records, with penalties for non-compliance reaching up to $50,000 per violation. | U.S. healthcare providers, insurers, and business associates handling protected health information. | | **Law** | [Sarbanes--Oxley Act (SOX)](https://www.govinfo.gov/content/pkg/PLAW-107publ204/pdf/PLAW-107publ204.pdf) | Mandates strict controls and audits for publicly traded companies over financial reporting systems to ensure data accuracy and security. | U.S. publicly traded companies responsible for financial reporting. | | **Standard** | [Payment Card Industry Data Security Standard (PCI DSS)](https://www.pcisecuritystandards.org/standards/pci-dss/) | Sets security standards for organizations handling credit card transactions, requiring the protection of cardholder data and strong security against breaches and fraud. | Organizations processing, storing, or transmitting cardholder data. | | **Standard** | [ISO/IEC 27001](https://www.iso.org/standard/27001) | Provides guidelines for implementing an information security management system (ISMS) to help reduce risks and protect sensitive information through best practices. | Organizations worldwide implementing an ISMS or seeking certification. | | **Framework** | [NIST Cybersecurity Framework (CSF) 2.0](https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.29.pdf) | Defines risk-based outcomes across identify, protect, detect, respond, and recover. Helps organizations prioritize and manage data security activities. | Organizations across industries aligning programs with risk-based outcomes. | | **Framework** | [NIST SP 800-53 Rev. 5](https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final) | Provides a detailed catalog of security and privacy controls to protect information systems and data. Supports confidentiality, integrity, and availability objectives. | U.S. federal agencies and organizations adopting NIST-based controls. | | **Framework** | [COBIT 2019](https://store.isaca.org/s/store#/store/browse/detail/a2S4w000004Ko9cEAC) | Offers governance guidance linking enterprise goals with IT and data security objectives. Includes control objectives, performance monitoring, and compliance alignment. | Enterprises aligning IT governance with business and compliance requirements. | | **Framework** | [CIS Controls v8](https://www.cisecurity.org/controls/v8) | Provides prioritized, implementation-focused safeguards for securing data across endpoints, networks, and users. Offers a tactical roadmap for enforcing policy. | Organizations of all sizes adopting prioritized safeguards for practical data security. | | ***Further reading:*** * [*What Is Data Compliance?*](https://www.paloaltonetworks.com/cyberpedia/data-compliance) * [*What Is Data Privacy Compliance?*](https://www.paloaltonetworks.com/cyberpedia/data-privacy-compliance) * [*What Is Data Loss Prevention (DLP) Compliance?*](https://www.paloaltonetworks.com/cyberpedia/data-loss-prevention-dlp-compliance) ## Comparing data security with related security domains Data security is only one piece of a bigger puzzle. It overlaps with---but isn't the same as---privacy, protection, or broader security disciplines. These terms are often used interchangeably, which creates confusion about scope and responsibility. Clarifying the differences makes it easier to see where data security fits and how it connects to adjacent domains. The table below highlights where each domain starts, where it overlaps, and how they reinforce one another. | Comparing data security with related security domains | |-------------------------------------------------------| | Domain | Definition | Primary focus | Tools \& methods | Overlap with data security | |-------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------| | **Data security** | Protects digital information from unauthorized access, corruption, or loss throughout its lifecycle. | Confidentiality, integrity, and availability of data. | Encryption, access control, DLP, key management. | Core subject --- overlaps with all other domains where data is in scope. | | **Data privacy** | Governs who can access and share personal or [sensitive data](https://www.paloaltonetworks.com/cyberpedia/sensitive-data), emphasizing user rights and consent. | Control over personal data handling and third-party use. | Consent management, anonymization, privacy impact assessments. | Privacy depends on security to enforce access and safeguard data. | | **Application security** | Secures software applications by preventing vulnerabilities and attacks at the code, runtime, or API level. | Reducing exploitable flaws in apps that handle data. | Secure coding, code reviews, [penetration testing](https://www.paloaltonetworks.com/cyberpedia/what-is-penetration-testing), WAFs. | Protects the environments where data is processed and stored. | | [Cybersecurity](https://www.paloaltonetworks.com/cyberpedia/what-is-cyber-security) | Broad discipline covering protection of systems, networks, and digital assets against cyber threats. | Defense of entire IT ecosystem against external and internal threats. | Firewalls, IDS/IPS, SIEM, threat intelligence. | Data security is one component of overall cybersecurity. | | **Data protection** | Combines security and recovery practices to keep data safe, intact, and available. | Preventing unauthorized access and ensuring recoverability. | Encryption, backup, redundancy, compliance programs. | Data security is part of protection; protection adds availability and recovery. | | **Information security (InfoSec)** | High-level discipline that governs security of all information assets, digital and physical. | Policies, governance, and controls across people, processes, and technology. | ISMS, security policies, audits, risk management frameworks. | Data security is a subset, focusing specifically on digital data. | | ***Further reading:** [What Is Data Privacy?](https://www.paloaltonetworks.com/cyberpedia/data-privacy)* ![Icon of a book](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/cyberpedia/what-is-a-firewall/icon-ebook.svg) Understand the business impact of breaches Explore the *Unit 42 2025 Incident Response Report* for data on disruption, downtime, and financial consequences. --- [Read the report](https://www.paloaltonetworks.com/resources/research/unit-42-incident-response-report) ## Data security FAQs #### What is meant by data security? The role of data security is to protect digital information from unauthorized access, corruption, or loss. Data security concepts generally include using tools and policies, such as encryption and access control, to ensure the data remains secure throughout its lifecycle. #### What is the definition of data security? Data security is the practice of protecting digital information from unauthorized access, corruption, or loss. It involves implementing technologies, tools, and policies to ensure that data is kept safe throughout its life cycle. #### What is data security for business? Data security for enterprises involves safeguarding sensitive information from unauthorized access, theft, or corruption. It includes implementing strategies such as encryption, access control, and regular backups to protect customer data, intellectual property, and business operations, ensuring compliance with regulations and maintaining trust. #### What is data security in information technology? In IT, data security refers to protecting digital information through technical measures like encryption, firewalls, and access management. It ensures that data is securely stored, transmitted, and accessed, preventing unauthorized modifications, breaches, or loss, which could compromise systems and violate compliance standards. #### What is data security in networking? Data security in networking focuses on protecting data as it travels across networks. It includes methods such as encryption, VPNs, and secure protocols to prevent unauthorized interception, modification, or loss. This ensures the confidentiality, integrity, and availability of data within internal and external network communications. #### How does data security work? Data security works by implementing a combination of measures to protect sensitive information. This includes encryption, access controls, data masking, and regular audits. It aims to prevent unauthorized access, data breaches, and corruption, ensuring the confidentiality, integrity, and availability of data across its lifecycle. #### What are the 3 types of data security? The three types of data security are physical security (protecting devices), administrative security (setting policies and protocols), and technical security (using encryption, firewalls, and access control). #### What are the four elements of data security? The four elements of data security are confidentiality, integrity, availability, and accountability, ensuring that data is accessed, used, and managed securely and appropriately. #### What are 5 ways to secure data? To secure data, implement encryption, data masking, access control, disaster recovery plans, and employee training on recognizing cyber threats like phishing. #### What are the three core elements of data security? The three core elements of data security are confidentiality (ensuring only authorized access), integrity (preventing unauthorized data alteration), and availability (ensuring data is accessible when needed). #### What does good data security look like? Good data security includes using encryption, strong access control policies, regular audits, and ensuring compliance with regulations. It protects sensitive information and prevents unauthorized access or data breaches. #### What is the most common threat to data security? The most common threats to company data security include phishing, malware, and ransomware. Phishing remains widespread due to its ability to exploit human vulnerabilities, while malware and ransomware pose significant risks through direct data corruption, theft, or system disruption. #### Why do we need data security? Data security is vital to protect sensitive information from theft, corruption, and unauthorized access. It helps organizations comply with regulations, maintain customer trust, and avoid costly data breaches. Related content [Secure Your Data with Data Security Posture Management (DSPM) Discover a unified approach to data security, helping security teams identify, prioritize, and remediate risks in real time.](https://www.paloaltonetworks.com/resources/datasheets/data-security-posture-management?ts=markdown) [The Ultimate DSPM and AI-SPM Guide for Cloud Security Professionals Regain control of data and AI risk across multicloud environments with unified visibility, real-time protection, and the confidence to move fast---without compromise.](https://www.paloaltonetworks.com/resources/guides/dspm-aispm-cloud-security-guide?ts=markdown) [Secure AI and Cloud: 5 Key Requirements Get practical, battle-tested steps to protect your cloud and AI deployments today.](https://www.paloaltonetworks.com/resources/guides/multicloud-security-requirements?ts=markdown) [DSPM: Do You Need It? 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