Endpoint detection and response, or EDR, refers to a category of tools used to detect and investigate threats on endpoint devices. EDR tools typically provide detection, analysis, investigation and response capabilities.
EDR tools monitor events generated by endpoint agents to look for suspicious activity, and alerts EDR tools create help security operations analysts identify, investigate and remediate issues. EDR tools also collect telemetry data on suspicious activity and may enrich that data with other contextual information from correlated events. Through these functions, EDR is instrumental in shortening response times for incident response teams.
EDR has become a critical component of the endpoint security toolkit as endpoints have become more vulnerable targets for cyberattackers. Trends such as the internet of things and the increase in mobile and remote workers have made endpoints popular entry points for cybercriminals to launch sophisticated attacks on individuals or organizations.
The key capabilities of EDR include:
The Evolution of EDR Is XDR
Traditional EDR tools focus on only on endpoint data, providing limited visibility into suspected threats. This can result in missed detections, increased false positives and longer investigation times. These shortcomings compound the challenges many security teams already face, including event overload, skills shortages, narrowly focused tools, a lack of integration and too little time.
XDR is a new approach to threat detection and response. The “X” stands for any data source, such as network, cloud and endpoint sensors. XDR systems use heuristics, analytics, modeling and automation to stitch together and derive insight from these sources, increasing security visibility and productivity compared to siloed security tools. The result is simplified investigations across security operations, reducing the time it takes to discover, hunt, investigate and respond to any form of threat.
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