Why SIEM Rules Fail and How to Fix Them: Insights from 160 Million Attack Simulations
Aug 25, 2025
Network Security / Threat Detection
Security Information and Event Management (SIEM) systems act as the primary tools for detecting suspicious activity in enterprise networks, helping organizations identify and respond to potential attacks in real time. However, the new Picus Blue Report 2025 , based on over 160 million real-world attack simulations , revealed that organizations are only detecting 1 out of 7 simulated attacks , showing a critical gap in threat detection and response. While many organizations believe they're doing everything they can to detect adversary actions, the reality is that a large number of threats are slipping through their defenses unnoticed, leaving their networks far too vulnerable to compromise. This gap in detection creates a false sense of security when attackers have already accessed your sensitive systems, escalated their privileges, or are actively exfiltrating your valuable data. Which begs the question: why, after all this time, money, and attention, are these systems still ...