Endpoint Security Validation  

Endpoint security validation is the practice of testing whether your EDR and anti-malware controls actually detect and stop real attacker behavior, rather than assuming they do based on vendor claims or default configurations. Cymulate does this by running attack simulations mapped to MITRE ATT&CK against your endpoints and comparing what the attack did against what your EDR logged, alerted on, or blocked. The result is evidence of where your endpoint controls hold up and where they don’t. 

Cymulate runs attacker techniques and full attack chains against your endpoints using the deepest attack library available, tailored to your environment. It then correlates the simulation with your EDR’s logs and alerts to determine whether each technique was detected, blocked, or missed entirely. Findings map directly to MITRE ATT&CK, so you can see coverage gaps by technique rather than a single pass/fail score, and each finding shows the exact detection logic needed to close the gap. 

Yes. Cymulate simulations are production-safe: they reproduce the techniques and behavior of real attacks without executing actual malicious payloads or causing damage to systems or data. This is what allows validation to run continuously in live environments rather than being confined to a test lab or a scheduled maintenance window.  

Yes, through Cymulate Auto Mitigation. For missed attacker behaviors, Cymulate generates and deploys vendor-specific EDR detection rules directly to your console. For indicators of compromise that surface during validation, you can push them individually, in bulk, or via automated policies. Every pushed rule, or IoC, can be reviewed before deployment, removed or undone from Cymulate and is automatically retested to confirm it improved detection.  

Penetration testing is point-in-time and manual: a skilled tester runs a defined engagement, usually annually or quarterly and hands back a report of what they found. Endpoint security validation with Cymulate runs continuously and safely in production, requires no pentester expertise to operate and covers the full breadth of MITRE ATT&CK rather than the subset of techniques a single engagement can reach in its allotted time. It also goes a step further than reporting: when Cymulate finds a gap, it can generate the fix, deploy it to your EDR and retest automatically to prove the gap is closed.