Filigran OpenAEV vs Splunk Attack Range: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Filigran OpenAEV is a commercial threat simulation tool by Filigran. Splunk Attack Range is a free threat simulation tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat simulation fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Mid-market and enterprise teams with mature EDR deployments will get the most from Filigran OpenAEV because it validates whether your existing detection stack actually catches real attacks instead of just assuming coverage. The platform's MITRE ATT&CK-aligned simulation library and AI-assisted scenario creation mean you're testing threats your environment actually faces, not generic templates, and the agentless architecture lets you start validating immediately without EDR replacement costs. Skip this if you need a turnkey solution that works without an EDR already in place; OpenAEV assumes you own the detection layer and want to stress-test it.
Detection engineers and security architects building Splunk environments need Splunk Attack Range to close the gap between rule development and real-world validation; it generates instrumented attack scenarios that let you test detections against actual adversary behavior before production deployment. The platform's 2,343 GitHub stars reflect active adoption by teams that have moved past theoretical rule tuning, and the open-source model means you're not paying licensing fees while iterating through dozens of attack chains. Skip this if your organization doesn't already have Splunk as a SIEM or lacks the engineering bandwidth to manage local lab infrastructure; Attack Range assumes technical depth and adds no value as a point-and-click simulation tool.
