All news with #attack simulation tag

Why SIEM Rules Fail — Causes and Practical Fixes in 2025

🔍 The Picus Blue Report 2025, derived from over 160 million real-world attack simulations, found that organizations detected only 1 in 7 simulated attacks, exposing significant detection and response gaps. The report attributes most failures to missing or misrouted telemetry, misconfigured detection rules, and performance bottlenecks that delay or drop alerts. It recommends continuous validation—for example, using Breach and Attack Simulation—to routinely test rules, verify end-to-end log collection, and prioritize fixes so defenses remain effective against current adversary TTPs. Practical steps include regular log-source audits, optimizing rule logic and thresholds, deploying lightweight test filters, and running ongoing simulation-based validations to reduce noise and recover blind spots.