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    [AI-Driven Security Operations Platform](https://www.paloaltonetworks.com/cortex?ts=markdown)
  
  * [Cloud Security](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown)
  
  * [Cortex Cloud](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown)
  
  * [Application Security](https://www.paloaltonetworks.com/cortex/cloud/application-security?ts=markdown)
  
  * [Cloud Posture Security](https://www.paloaltonetworks.com/cortex/cloud/cloud-posture-security?ts=markdown)
  
  * [Cloud Runtime Security](https://www.paloaltonetworks.com/cortex/cloud/runtime-security?ts=markdown)
  
  * [Prisma Cloud](https://www.paloaltonetworks.com/prisma/cloud?ts=markdown)
  
  * [AI-Driven SOC](https://www.paloaltonetworks.com/cortex?ts=markdown)
  
  * [Cortex XSIAM](https://www.paloaltonetworks.com/cortex/cortex-xsiam?ts=markdown)
  
  * [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown)
  
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  * [Cortex XSOAR](https://www.paloaltonetworks.com/cortex/cortex-xsoar?ts=markdown)
  
  * [Cortex Exposure Management](https://www.paloaltonetworks.com/cortex/exposure-management?ts=markdown)
  
  * [Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse?ts=markdown)
  
  * [Cortex Advanced Email Security](https://www.paloaltonetworks.com/cortex/advanced-email-security?ts=markdown)
  
  * [Unit 42 Managed Detection \& Response](https://www.paloaltonetworks.com/cortex/managed-detection-and-response?ts=markdown)
  
  * [Unit 42 Managed XSIAM](https://www.paloaltonetworks.com/cortex/managed-xsiam?ts=markdown)

* Solutions  
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  Secure AI by Design
  
  * [Secure AI Ecosystem](https://www.paloaltonetworks.com/prisma/prisma-ai-runtime-security?ts=markdown)
  * [Secure GenAI Usage](https://www.paloaltonetworks.com/sase/ai-access-security?ts=markdown)  
    Network Security
  * [Cloud Network Security](https://www.paloaltonetworks.com/network-security/software-firewalls?ts=markdown)
  * [Data Center Security](https://www.paloaltonetworks.com/network-security/data-center?ts=markdown)
  * [DNS Security](https://www.paloaltonetworks.com/network-security/advanced-dns-security?ts=markdown)
  * [Intrusion Detection and Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention?ts=markdown)
  * [Device Security](https://www.paloaltonetworks.com/network-security/device-security?ts=markdown)
  * [OT Security](https://www.paloaltonetworks.com/network-security/ot-security-solution?ts=markdown)
  * [5G Security](https://www.paloaltonetworks.com/network-security/5g-security?ts=markdown)
  * [Secure All Apps, Users and Locations](https://www.paloaltonetworks.com/sase/secure-users-data-apps-devices?ts=markdown)
  * [Secure Branch Transformation](https://www.paloaltonetworks.com/sase/secure-branch-transformation?ts=markdown)
  * [Secure Work on Any Device](https://www.paloaltonetworks.com/sase/secure-work-on-any-device?ts=markdown)
  * [VPN Replacement](https://www.paloaltonetworks.com/sase/vpn-replacement-for-secure-remote-access?ts=markdown)
  * [Web \& Phishing Security](https://www.paloaltonetworks.com/network-security/advanced-url-filtering?ts=markdown)  
    Cloud Security
  * [Application Security Posture Management (ASPM)](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)
  * [Code Security](https://www.paloaltonetworks.com/cortex/cloud/code-security?ts=markdown)
  * [Cloud Security Posture Management (CSPM)](https://www.paloaltonetworks.com/cortex/cloud/cloud-security-posture-management?ts=markdown)
  * [Cloud Infrastructure Entitlement Management (CIEM)](https://www.paloaltonetworks.com/cortex/cloud/cloud-infrastructure-entitlement-management?ts=markdown)
  * [Data Security Posture Management (DSPM)](https://www.paloaltonetworks.com/cortex/cloud/data-security-posture-management?ts=markdown)
  * [AI Security Posture Management (AI-SPM)](https://www.paloaltonetworks.com/cortex/cloud/ai-security-posture-management?ts=markdown)
  * [Cloud Detection \& Response](https://www.paloaltonetworks.com/cortex/cloud-detection-and-response?ts=markdown)
  * [Cloud Workload Protection (CWP)](https://www.paloaltonetworks.com/cortex/cloud/cloud-workload-protection?ts=markdown)
  * [Web Application \& API Security (WAAS)](https://www.paloaltonetworks.com/cortex/cloud/web-app-api-security?ts=markdown)  
    Security Operations
  * [Cloud Detection \& Response](https://www.paloaltonetworks.com/cortex/cloud-detection-and-response?ts=markdown)
  * [Security Information and Event Management](https://www.paloaltonetworks.com/cortex/modernize-siem?ts=markdown)
  * [Network Security Automation](https://www.paloaltonetworks.com/cortex/network-security-automation?ts=markdown)
  * [Incident Case Management](https://www.paloaltonetworks.com/cortex/incident-case-management?ts=markdown)
  * [SOC Automation](https://www.paloaltonetworks.com/cortex/security-operations-automation?ts=markdown)
  * [Threat Intel Management](https://www.paloaltonetworks.com/cortex/threat-intel-management?ts=markdown)
  * [Managed Detection \& Response](https://www.paloaltonetworks.com/cortex/managed-detection-and-response?ts=markdown)
  * [Attack Surface Management](https://www.paloaltonetworks.com/cortex/cortex-xpanse/attack-surface-management?ts=markdown)
  * [Compliance Management](https://www.paloaltonetworks.com/cortex/cortex-xpanse/compliance-management?ts=markdown)
  * [Internet Operations Management](https://www.paloaltonetworks.com/cortex/cortex-xpanse/internet-operations-management?ts=markdown)
  * [Extended Data Lake (XDL)](https://www.paloaltonetworks.com/cortex/cortex-xdl?ts=markdown)
  * [Agentic Assistant](https://www.paloaltonetworks.com/cortex/cortex-agentic-assistant?ts=markdown)  
    Endpoint Security
  * [Endpoint Protection](https://www.paloaltonetworks.com/cortex/endpoint-protection?ts=markdown)
  * [Extended Detection \& Response](https://www.paloaltonetworks.com/cortex/detection-and-response?ts=markdown)
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  * [Small \& Medium Business Solutions](https://www.paloaltonetworks.com/industry/small-medium-business-portfolio?ts=markdown)

* Services  
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  [Threat Intel and Incident Response Services](https://www.paloaltonetworks.com/unit42?ts=markdown)
  
  * [Assess](https://www.paloaltonetworks.com/unit42/assess?ts=markdown)
  
  * [AI Security Assessment](https://www.paloaltonetworks.com/unit42/assess/ai-security-assessment?ts=markdown)
  
  * [Attack Surface Assessment](https://www.paloaltonetworks.com/unit42/assess/attack-surface-assessment?ts=markdown)
  
  * [Breach Readiness Review](https://www.paloaltonetworks.com/unit42/assess/breach-readiness-review?ts=markdown)
  
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  * [Cloud Security Assessment](https://www.paloaltonetworks.com/unit42/assess/cloud-security-assessment?ts=markdown)
  
  * [Compromise Assessment](https://www.paloaltonetworks.com/unit42/assess/compromise-assessment?ts=markdown)
  
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  * [M\&A Cyber Due Diligence](https://www.paloaltonetworks.com/unit42/assess/mergers-acquisitions-cyber-due-diligence?ts=markdown)
  
  * [Penetration Testing](https://www.paloaltonetworks.com/unit42/assess/penetration-testing?ts=markdown)
  
  * [Purple Team Exercises](https://www.paloaltonetworks.com/unit42/assess/purple-teaming?ts=markdown)
  
  * [Ransomware Readiness Assessment](https://www.paloaltonetworks.com/unit42/assess/ransomware-readiness-assessment?ts=markdown)
  
  * [SOC Assessment](https://www.paloaltonetworks.com/unit42/assess/soc-assessment?ts=markdown)
  
  * [Supply Chain Risk Assessment](https://www.paloaltonetworks.com/unit42/assess/supply-chain-risk-assessment?ts=markdown)
  
  * [Tabletop Exercises](https://www.paloaltonetworks.com/unit42/assess/tabletop-exercise?ts=markdown)
  
  * [Unit 42 Retainer](https://www.paloaltonetworks.com/unit42/retainer?ts=markdown)
  
  * [Respond](https://www.paloaltonetworks.com/unit42/respond?ts=markdown)
  
  * [Cloud Incident Response](https://www.paloaltonetworks.com/unit42/respond/cloud-incident-response?ts=markdown)
  
  * [Digital Forensics](https://www.paloaltonetworks.com/unit42/respond/digital-forensics?ts=markdown)
  
  * [Incident Response](https://www.paloaltonetworks.com/unit42/respond/incident-response?ts=markdown)
  
  * [Managed Detection and Response](https://www.paloaltonetworks.com/unit42/respond/managed-detection-response?ts=markdown)
  
  * [Managed Threat Hunting](https://www.paloaltonetworks.com/unit42/respond/managed-threat-hunting?ts=markdown)
  
  * [Managed XSIAM](https://www.paloaltonetworks.com/cortex/managed-xsiam?ts=markdown)
  
  * [Unit 42 Retainer](https://www.paloaltonetworks.com/unit42/retainer?ts=markdown)
  
  * [Transform](https://www.paloaltonetworks.com/unit42/transform?ts=markdown)
  
  * [IR Plan Development and Review](https://www.paloaltonetworks.com/unit42/transform/incident-response-plan-development-review?ts=markdown)
  
  * [Security Program Design](https://www.paloaltonetworks.com/unit42/transform/security-program-design?ts=markdown)
  
  * [Virtual CISO](https://www.paloaltonetworks.com/unit42/transform/vciso?ts=markdown)
  
  * [Zero Trust Advisory](https://www.paloaltonetworks.com/unit42/transform/zero-trust-advisory?ts=markdown)  
    [Global Customer Services](https://www.paloaltonetworks.com/services?ts=markdown)
  
  * [Education \& Training](https://www.paloaltonetworks.com/services/education?ts=markdown)
  
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    UNIT 42 RETAINER
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* Partners  
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  * [Solution Providers](https://www.paloaltonetworks.com/partners/nextwave-solution-providers?ts=markdown)
  * [Managed Security Service Providers](https://www.paloaltonetworks.com/partners/managed-security-service-providers?ts=markdown)
  * [XMDR Partners](https://www.paloaltonetworks.com/partners/managed-security-service-providers/xmdr?ts=markdown)  
    Take Action
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  * [Become a Partner](https://paloaltonetworks.my.site.com/NextWavePartnerProgram/s/partnerregistration?type=becomepartner)
  * [Request Access](https://paloaltonetworks.my.site.com/NextWavePartnerProgram/s/partnerregistration?type=requestaccess)
  * [Find a Partner](https://paloaltonetworks.my.site.com/NextWavePartnerProgram/s/partnerlocator)  
    [CYBERFORCE
    CYBERFORCE represents the top 1% of partner engineers trusted for their security expertise.
    Learn more](https://www.paloaltonetworks.com/cyberforce?ts=markdown)

* Company  
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  Palo Alto Networks
  
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  * [Precision AI Security](https://www.paloaltonetworks.com/precision-ai-security?ts=markdown)
  * [Our Platform Approach](https://www.paloaltonetworks.com/why-paloaltonetworks/platformization?ts=markdown)
  * [Accelerate Your Cybersecurity Transformation](https://www.paloaltonetworks.com/why-paloaltonetworks/nam-cxo-portfolio?ts=markdown)
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    Careers
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    Read more](https://www.paloaltonetworks.com/company/press/2021/palo-alto-networks-secures-top-ranking-on-newsweek-s-most-loved-workplaces-list-for-2021?ts=markdown)

* More  
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  * [Threat Vector Podcast](https://unit42.paloaltonetworks.com/unit-42-threat-vector-podcast/)
  * [Packet Pushers Podcasts](https://www.paloaltonetworks.com/podcasts/packet-pusher?ts=markdown)  
    Connect
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*** ** * ** ***

# Log4j (aka "Log4Shell") Resource Center

We're here to help.  
[Get in touch](#log4shell_inline_form)[Read the Log4j Threat Analysis](https://unit42.paloaltonetworks.com/apache-log4j-vulnerability-cve-2021-44228/)  
Threat BriefingsUnit 42 AnalysisResourcesAssessments

* [Threat Briefings](#threatbriefings)
* [Unit 42 Analysis](#unit42analysis)
* [Resources](#resources)
* [Assessments](#assessments)  
  {#threatbriefings}

*** ** * ** ***

Live and On-Demand Threat Briefings

## Threat briefings to keep you up to date on the latest best practices for responding to Log4j

[Browse all](https://register.paloaltonetworks.com/unit42threatbriefingapache)

* \[![Profile of Bradley Duncan](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/unit42/Duncan.jpg)
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  * 1 hour\](https://start.paloaltonetworks.com/apache-log4j-threat-update.html)
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  ### Top Questions Your C-Suite and Board Will Ask About Log4j
  * Tim Erridge, David Faraone, and LeeAnne Pelzer
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  * 1 hour\](https://www.paloaltonetworks.com/resources/webcasts/top-questions-your-c-suite-and-board-will-ask-about-log4j?ts=markdown)
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  ### Understanding and Responding to the Apache Log4j Vulnerability
  * Wendi Whitmore, Ankur Shah
  * On-demand
  * 35 minutes\](https://www.paloaltonetworks.com/resources/webcasts/understanding-log4j-vulnerability?ts=markdown)
* \[![Rob Rachwald](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/unit42/rob-headshot.jpg)
  WEBINAR
  ### How Palo Alto Networks Protects Customers From the Apache Log4j Vulnerability
  * Rob Rachwald
  * On-demand
* 30 minutes\](https://start.paloaltonetworks.com/mitigating-log4j-vulnerability-panw)  
  {#unit42analysis}

*** ** * ** ***

## Unit 42 Log4j Threat Analysis

With over 360,000 readers consuming our initial threat analysis of Log4j, the Unit 42^®^ Threat Intelligence team continues to publish factual information on best practices for your mitigations, as well as research on exploits we've seen targeting Log4Shell.  
[Read the Log4j Threat Analysis](https://unit42.paloaltonetworks.com/apache-log4j-vulnerability-cve-2021-44228/)  
![Log4J Threat Analysis](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/log4shell/hero_2_optimized.jpg)

*** ** * ** ***

## How Palo Alto Networks Customers Are Protected

Palo Alto Networks customers are protected from attacks exploiting the Apache Log4j remote code execution (RCE) vulnerability. In addition, we offer a number of solutions to help identify affected applications and incident response if needed. Here's how we help:

* **Blocking the Exploit:** To give you time while your teams patch the vulnerabilities, Palo Alto Networks customers are protected by our [Next-Generation Firewalls](https://www.paloaltonetworks.com/network-security/next-generation-firewall?ts=markdown) (PA-Series, VM-Series and CN-Series) or [Prisma Access](https://www.paloaltonetworks.com/sase/access?ts=markdown) with a [Threat Prevention](https://www.paloaltonetworks.com/products/secure-the-network/subscriptions/threat-prevention?ts=markdown) security subscription, [Cortex® XDR™](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown) and [Prisma® Cloud](https://www.paloaltonetworks.com/prisma/cloud).
* **Incident Scoping:** Palo Alto Networks can help provide this visibility using Prisma Cloud, [Cortex XSOAR](https://www.paloaltonetworks.com/cortex/cortex-xsoar?ts=markdown) and [Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse?ts=markdown).
* **Incident Response:** Our [IR services](https://www.paloaltonetworks.com/unit42/incident-response?ts=markdown) can help companies of any size investigate and remediate potential threat actor activity.  
  {#resources} LOG4SHELL RESOURCES  
  [See all documents](https://www.paloaltonetworks.com/resources.html?q=*%3A*&_charset_=UTF-8&fq=PRODUCTS0_DFACET%3Apan%253Aresource-center%252Fproducts0%252Fcrypsis)  
  Cortex  
  INTERACTIVE DEMO

### See our interactive Log4j incident response simulation featuring Cortex XDR

[See the Demo](https://www.paloaltonetworks.com/resources/infographics/central-command?ts=markdown)  
Portfolio  
BLOG

### The Palo Alto Networks Full-Court Defense for Apache Log4j

[Read blog](https://www.paloaltonetworks.com/blog/2021/12/defense-for-apache-log4j/?ts=markdown)  
Strata  
BLOG

### Addressing Apache Log4j Vulnerability with NGFW and Cloud-Delivered Security Services

[Read blog](https://www.paloaltonetworks.com/blog/network-security/apache-log4j-vulnerability-ngfw/?ts=markdown)  
Prisma  
BLOG

### Update: Prisma Cloud Addresses Log4Shell: CVE-2021-44228, CVE-2021-45046 Mitigations

[Read blog](https://www.paloaltonetworks.com/blog/prisma-cloud/log-4-shell-vulnerability/?ts=markdown)  
Cortex  
BLOG

### Managing Apache Log4j on Your Attack Surface with Cortex Xpanse

[Read blog](https://www.paloaltonetworks.com/blog/security-operations/cortex-xpanse-finding-apache-log4j/?ts=markdown)  
Cortex  
Blog

### Hunt for Log4j CVE-2021-44228 (Log4Shell) exploit activity

[Read blog](https://www.paloaltonetworks.com/blog/security-operations/hunting-for-log4j-cve-2021-44228-log4shell-exploit-activity/)  
Unit 42  
BLOG

### Another Apache Log4j Vulnerability Is Actively Exploited in the Wild (CVE-2021-44228)

[Read blog](https://unit42.paloaltonetworks.com/apache-log4j-vulnerability-cve-2021-44228/)  
PreviousNext
[See all documents](https://www.paloaltonetworks.com/resources.html?q=*%3A*&_charset_=UTF-8&fq=PRODUCTS0_DFACET%3Apan%253Aresource-center%252Fproducts0%252Fcrypsis)  
{#assessments}

*** ** * ** ***

![](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/log4shell/Image1.svg)  
ASSESS \& RESPOND

## Unit 42 Log4Shell Compromise Assessment

Assess your exposure, investigate and remediate.  
[Learn more](https://www.paloaltonetworks.com/resources/datasheets/log4shell-compromise-assessment?ts=markdown)  
{#log4shell\_inline\_form} {#log4shell\_compromise\_assessment}

## Get Log4j Response Support

If you suspect you may be impacted by the Log4j vulnerability, fill out the form to get in touch with the Unit 42 Incident Response team. If you have a cyber insurance provider or legal counsel, you can request Unit 42 by name to help you investigate this matter.  
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