Playbook
Our SIEM is producing noise, not signal — analysts are buried
A CISO's SOC is drowning in alerts from a legacy SIEM that lacks Microsoft-estate context. False positives are routine, mean-time-to-respond has crept up, and the team relies on out-of-the-box rules instead of disciplined detection engineering.
Trigger — SIEM renewal due; analyst attrition rising.
Good outcome — Sentinel + Defender XDR live, ingest discipline established, detection engineering as a continuous practice.