Free practice · matching · hard
Practice
Match device symptoms to safe boundaries
Match each observation to the action boundary it creates.
Device safety path
Approved sources and prompt reporting protect the whole device lifecycle
- ApproveUse supported hardware and software
- UpdateApply operating system, browser, and app fixes
- ProtectUse locks, encryption, and security controls
- ObserveNotice alerts and unusual behavior
- StopAvoid destructive self-investigation
- ReportHand facts to authorized support
A safe device stays supported, updated, least-privileged, monitored, and inside authorized response boundaries.