Keeper change history: Resolved: KeeperPAM Connection Errors in US Data Center

KeeperPAM connection errors in the US Data Center caused a major incident starting 2026-03-23 17:07 UTC, lasting 4 h 37 min and resolving at 2026-03-23 21:45 UTC. Keeper implemented a fix; its postmortem identified a low-level concurrency bug in the Keeper EPM service causing request failures under high simultaneous load and instability in ECS services.