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EDR and XDR – What's the best solution for your business?

Find out which technology is best-suited to protect your business. 

For years, endpoint detection and response (EDR) has formed the backbone of many enterprise cybersecurity solutions. EDR technology enables greater visibility into systems, allowing security professionals to detect fileless attacks, document-based malware, and zero-day exploits. 

By directing detection-based analysis towards user behaviors on endpoint devices like laptops, desktops, and mobile phones, EDR solutions can alert security teams of suspicious behaviors well before a cyberattack successfully triggers. 

However, EDR solutions collect and process large volumes of user data across multiple systems.

They demand greater expertise and more resources than traditional security technologies and can produce a large number of alerts. 

The widespread adoption of cloud technology, distributed workforces, on-demand network scalability has only increased the demands enterprises place on EDR technology. At the same time, cybercriminals have adopted increasingly sophisticated attack strategies, leading vendors to develop solutions that address some of the shortcomings of EDR. 

This new approach is called extended detection and response (XDR). It goes beyond simply analyzing endpoint device behavior, enabling organization-wide analysis and response suited for the modern enterprise.

XDR: Detection and Response For Complex Enterprise Networks

In 2013 when Gartner security specialist Anton Chuvakin first coined the term “EDR”, cloud computing was in its infancy. Remote and hybrid employees were a rarity. Enterprises generally exposed a much smaller attack surface to cybercriminals.  

Under these conditions, focusing detection and response technology on endpoints made perfect sense. In today’s cloud-enabled remote work environment, enterprises routinely have hundreds of different apps in their tech stack.  

 In fact, the average enterprise with 10,000+ employees has 364 different vendor technologies in its portfolio. 

More than half of these are “shadow IT” apps not directly managed by enterprise IT staff. As cybercriminals increasingly focus on supply chain and vendor attacks, the need for extended detection and response is becoming an urgent one. 

XDR enhances the behavioral analysis capabilities of endpoint detection and response by covering cloud services, third-party data centers, and VPN employee portals. Many XDR solutions use emerging technologies like artificial intelligence and machine learning to correlate security events across incredibly wide enterprise attack surfaces, providing much-needed insight to fatigued security teams. 

XDR Reduces Organizational Siloing 

In today’s hyper-connected enterprise IT landscape, endpoint data cannot be analyzed in isolation. It needs to be combined and correlated with behavioral analysis from other parts of the enterprise network. 

Endpoint data only leads to insight when combined with security information and event management (SIEM) logs, network traffic captures, and a variety of other data types. All of these technologies typically have different collection policies and retention settings, making it difficult for security teams to gain visibility. 

By expanding detection and response technology to cover the entire enterprise attack surface, XDR provides greater context for security events than previous technologies. Security teams can identify threats more reliably and detect attacks earlier than they could using traditional methods restricted exclusively to endpoints. 

How XDR Solutions Actually Perform in Real-World Tests

MITRE Engenuity conducted a comprehensive series of tests in May 2021, putting many of the world’s top EDR and XDR vendors against 174 different attack types and measuring the results. 

Of the 29 cybersecurity vendors tested, only seven had a detection rate above 90%. Every single one of these top-performing companies has invested in XDR technology, expanding its EDR approach to cover complex enterprise networks. 

Make Castra Your Comprehensive XDR MSSP

Castra is a proud Exabeam, Anomali, and Palo Alto Networks partner, dedicated to deploying the most sophisticated detection and response capabilities the cybersecurity industry has to offer. Our approach to XDR is a managed service consisting of three industry-leading cybersecurity partners, whose complementary technologies enable best-in-class results. 

 Castra relies on Palo Alto Networks’ top-performing Cortex XDR solution to secure servers, VPN machines, and laptops with market-leading excellence. We secure the customer environment and perform behavioral analytics with Exabeam’s ML-enabled security management platform, and conduct comprehensive threat intelligence with Anomali ThreatStream. 

  • Exabeam uses machine learning to perform advanced user entity and behavioral analysis (UEBA). Its Fusion XDR technology offers cloud-delivered threat-centric use case packages informed by market-leading behavioral analytics. 
  • Anomali ThreatStream offers evidence-based knowledge about the context, mechanisms, indicators, and implications of cyberattack attempts. Its XDR solution, Anomali Match, performs continuous real-time monitoring of threat models and updates when cybercriminals change their tactics. 
  • Palo Alto Networks blocked 100% of MITRE Engenuity attacks with 97.13% visibility into attack techniques. Its Cortex XDR solution is an industry leader, helping some of the world’s most complex organizations optimize SecOps and coordinate threat response.


Our SOC2-certified Security Operation Center uses all three of these technologies to secure enterprise customers from the most sophisticated and persistent threats in today’s cybercrime landscape.

Rely on our expertise to protect your IT infrastructure from critical threats. Let’s talk more about our glass box solution! Contact us.