Extended Detection and Response (XDR) is a consolidation of tools and data that provides extended visibility, analysis, and response across endpoints, workloads, users, and networks.
XDR unifies endpoint and workload security capabilities with critical visibility into the network and cloud—reducing blind spots, detecting threats faster, and automating remediation via authoritative context across these domains.
Fundamentally, XDR is a consolidation of tools and data, and it represents a major step forward in enterprise security capabilities. Since XDR has access to raw data collected across the environment, it can detect bad actors that are using legitimate software to gain access to the system. This is something security information and event management software, or SIEMs, are often unable to do. XDR performs automated analysis and correlation of activity data, allowing security teams to contain threats more effectively. For example, it can extend to include network detections, lateral movement, anomalous connections, beacons, exfiltration, and delivery of malicious artifacts.
Like EDR, XDR responds to the threat in order to contain and remove it. But, XDR can respond more effectively to the impacted asset, due to its superior data collection and integration with the environment. True XDR platforms provide the holistic visibility and context that security analysts need to respond to threats in a manner that is both targeted and effective. This tailored response helps to contain not only the threat itself, but also the impact of the response on systems. Think: reducing downtime on critical servers.
There are three parts to XDR: telemetry and data analysis, detection, and response.
XDR’s capabilities above and beyond EDR give it several tangible benefits for securing an organization’s IT environment. These benefits include:
XDR is a powerful security strategy—but to realize its full benefits, it’s important to choose a solution that makes the most of its capabilities. When choosing a platform, look out for the following problems:
Detection and response technology employs real-time, continuous monitoring of systems to detect and investigate potential threats. A detection and response system then uses automation to contain and remove those threats.
There are a number of different types of detection and response solutions today, including:
XDR extends the capabilities of EDR across all the security layers in the environment— loads, devices, users and networks.
Rather than the single point of view that EDR provides, XDR enables telemetry and behavioral analysis across multiple security layers, allowing security teams to see the big picture.
Bad actors don’t limit their attacks to a single security layer, and security teams can’t afford to limit their view to one layer, either. EDR gives security professionals visibility into endpoints that might be compromised, but this isn’t enough when an attack has moved across the network and into other systems by the time the security team is aware of it. This is where XDR comes in. By providing a holistic view of activity across the system that avoids visibility gaps, XDR allows security teams to understand where a threat comes from and how it’s spreading across the environment—in order to eliminate it. In other words, XDR offers greater analysis and correlation capabilities and a holistic point of view.