Cybereason Cybereason Defense Platform vs Fidelis Security: Side-by-Side Comparison (2026)

Cybereason Cybereason Defense Platform

Mid-market and enterprise security teams that need to move fast on incident response will get the most from Cybereason Cybereason Defense Platform, because its MalOp Detection Engine visualizes entire attack chains instead of isolated alerts, cutting through noise that slows down triage. The platform covers seven of the eight NIST CSF 2.0 Response and Detect functions, with particular strength in Incident Analysis and Continuous Monitoring through its 24/7 MDR and threat hunting services. Skip this if your team is understaffed for threat hunting partnerships or if you're purely seeking vulnerability management; Cybereason assumes you'll actively engage with its intelligence team to get real value.

Fidelis Security

Mid-market and enterprise teams drowning in alert fatigue will find real value in Fidelis Security's deep session inspection and AD-aware network detection, which cut false positives by correlating endpoint and network signals that most XDR platforms treat separately. The platform covers all four NIST Detect and Respond functions with particular strength in continuous monitoring and incident analysis through 300+ forensic attributes and automated response capabilities. Skip this if you need a lightweight, cloud-native XDR; Fidelis is built for organizations with the infrastructure to run hybrid deployments and the analyst headcount to operationalize deception strategies like poisoned data and decoys.