Detection Engineering Detection Rule Staleness: How AI Can Solve This Now jbower, April 20, 2026April 24, 2026 Your detection rule staleness is leaving you vulnerable, and you don’t know it. Here’s a scenario I’ve watched play out more times than I’d like. Six months ago, we wrote a Sigma rule for T1059.001 – PowerShell. We tagged it to the technique, PySigma parsed it clean, CI went green,… Continue Reading