Extended detection and response (XDR)

Extended detection and response (XDR) is a modern, holistic platform approach to cyberthreat detection and response, protecting against unauthorized access and misuse. XDR replaces single-function security products to deliver unified threat detection and response across all attack surfaces.

The evolution of Endpoint Detection and Response (EDR), XDR natively embeds multiple security capabilities into a cohesive security operations system. XDR unifies threat detection with telemetry from diverse security functions like endpoint security, email security, privileged access management (PAM), zero trust networking access (ZTNA), deception technology, and more. A unified, cloud-native platform, XDR provides the security team with the agility, scalability and automation they need to be successful.

How XDR Works

XDR platforms collect and correlate activity data across multiple security capabilities, protecting applications like email, endpoints, servers, cloud workloads, and enterprise networks. XDR leverages automated analysis of a superset of rich data, to detect and conduct thorough forensic investigations quickly, and with greater intelligence and rapid response.

XDR enables the security team to:

  • Control diverse security functions through a single unified dashboard
  • Utilize single sign-on to the dashboard for all security products and modules
  • Easily manage and take action on alerts
    • Cross-platform alert notification
    • Actionable intelligence to reported incidents
  • Have a unified console
    • API integration with SIEM, SOAR, and other incident response platforms

XDR Benefits

  • Block malware, ransomware, fileless and memory-only attacks, and advanced zero-day attacks with a unified security operations system
  • Collect and correlate data from all attack surface sources to detect, investigate, respond and eliminate threats
  • Simplify investigations with automated root cause analysis and a unified security approach
  • Reduce the number of false-positive alerts
  • Increase efficiency by consolidating cybersecurity monitoring, management, investigation, and response across the network, endpoints, and cloud environments through a single dashboard
  • Protect networks and assets against malicious insiders and external bad actors
  • Stop every stage of an attack by detecting indicators of compromise (IOCs) and anomalous behavior as well as prioritizing analysis with incident scoring
  • Quickly recover from an attack by removing malicious files and registry keys, as well as restoring damaged files and registry keys

Advantages of an embedded security architecture versus layered security

XDR is a modern architectural approach that overcomes the visibility limitations and risk vulnerabilities of a layered approach to mitigating cyberattacks.

A layered threat approach integrates disparate security tools and products. However, the approach has numerous associated problems. Layered security creates many gaps that cause undue risk and wasted time maintaining and managing disparate security tools, rather than automating holistic security investigations. Disjointed and uncoordinated single-function security products create operational silos that can’t easily share critical information, if at all. They require security team members to spend their time and efforts integrating, maintaining and managing the systems, and conducting analysis manually - effectively creating security vulnerabilities that bad actors happily exploit.

Advanced XDR security functions are natively embedded, providing more insightful investigations that foster intelligent, actionable responses. Leveraging the logical cross-connections of multiple security capabilities, and the application of sophisticated analytics and threat intelligence, an XDR platform can provide an intuitive view of the full context of an attack, with complete visibility across the entire chain of events.

Automated processes eliminate manual steps, and provide rich data for analysis. Analysts can clearly see the timeline and attack path that may cross emails, endpoints, servers, clouds and networks. They can assess each step of the attack to quickly take the necessary action.

Cross-functional detection and response improves threat detection rates and response times. Automatic aggregation of the chain of activities are brought into a comprehensive view to make high-confidence decisions, with fewer and more prioritized alerts for quick action.

Resource Guide :

https://revbits.com/pdf/360-degree-cyber-brief.pdf

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