Extended Detection and Response (XDR)

How XDR enables more proactive detection and response

What is XDR?

Extended Detection and Response (XDR) is a cloud-native, cloud-scale solution that unifies and transforms multiple security telemetry sources with a goal of accelerating more comprehensive threat detection and response. This means security teams can rapidly and act on more precise insights to find and take down threats. 

As attack surfaces expand, the odds will always favor the threat actor. In anticipation of this, it seems natural to extend detection and response powers to be more proactive, encompassing, and prescriptive—to find threats earlier and respond/remediate faster.

Benefits of XDR

The modern XDR solution is cloud-native and prioritizes high-fidelity out-of-the-box detections and automation, finding and extinguishing real threats faster. This means leveraging multidimensional intelligence to take downexternal threats that directly target a business.

XDR does this by correlating data across diverse sources to recognize threats across the attack chain. This data is analyzed and transformed into a centralized, cohesive representation of incidents. XDR provides playbooks to guide threat response combined with automation. This results in faster mean time-to-detection (MTTD) and mean time-to-response (MTTR).

Compare XDR and SIEM

Traditional Security Information and Event Management (SIEM) offerings largely focus on data and log aggregation, dashboarding, and reporting that is critical for compliance, monitoring, and forensic activities. This is a subset of the scope of XDR, as a SIEM’s true focus is consolidating and unifying security telemetry into a single hub for comprehensive threat detection and response.

Effort

  • Traditional SIEM puts the onus on analysts to aggregate relevant security telemetry, correlate findings, validate threats, and remediate. XDR focuses on efficiency and productivity at every step, accelerating incident response and making space in analysts’ day.

Scope of visibility

  • As digital transformation accelerates, threats can originate from so many more places throughout the network. XDR goes beyond managing and analyzing SIEM logs to identify threats from an array of telemetry sources and threat feeds.

Signal-to-noise

  • With the growing volume of data to manage and investigate, SIEM solutions don’t give analysts the context they need to prioritize a growing number of alerts, i.e., “noise.” XDR separates the “signal” from the noise, deriving context and ultimately streamlining and surfacing issues needing immediate attention and response.

Evaluating XDR

If you're in the market for an XDR solution, you’re most likely interested in collecting data from across many different vectors, and then unifying it into actionable intelligence. This means seeking out rapid scalability, integration of internal and external insights, and visibility beyond SIEM logs. And, hopefully, much of that process will be as automated as possible.

Your visibility and ability to respond across multiple threat vectors are what matter most, thus your organization’s XDR solution should deliver greater signal-to-noise by leveraging advanced telemetry and analytics. It should also provide a comprehensive, scalable hub so the modern Security Operations Center (SOC) can secure an ever-expanding perimeter.

Modern XDR capabilities save SOCs more time by rapidly scaling to pull in multiple sources of security telemetry. Users get more built-in efficiency with expansive coverage, significant noise reduction, and even more precise detections.