SIEMs Missing the Mark on MITRE ATT&CK Techniques

CardinalOps' fifth annual report finds that enterprise SIEM tools miss nearly 80% of adversary techniques when measured against the MITRE ATT&CK framework: SIEM coverage averages 21% of techniques, about 13% of existing detection rules are non-functional, and organizations process abundant telemetry (259 log types and ~24,000 log sources) yet still lack effective detection due to manual detection engineering and insufficient automation for rule development and validation.