What to Do When Security Alerts Stop Arriving From a Critical System

A sudden absence of alerts can mean the system is quiet, or it can mean its log source, connector, credentials, or forwarding path stopped working.

What to check

Check source heartbeat, collection delay, connector health, authentication expiry, recent configuration changes, and whether raw events are present at the source. Compare against expected activity.

Recommended next step

Restore collection and verify end-to-end event arrival with a known test event. Informatix Systems can assess security monitoring coverage and incident readiness.