Free Blue Team Training Platform with 56 Levels on Live Shared SIEM Launched

BreachLab, a free training platform, has launched a blue team track called Sentinel with 56 levels across 8 acts. The training uses a live shared SIEM with real intrusion telemetry, covering alert triage, endpoint/network detection, memory/disk DFIR, detection engineering (Sigma/YARA/Suricata), threat hunting, cloud IR, and a live incident-command capstone. Reports and detections are graded, and the platform remains free with no paywall. An external review by a full-time blue teamer is available on the linked page.