Roles that once made sense now felt like ghosts — permissions given for projects that ended weeks ago, temporary approvals that had quietly become permanent, and silent accounts holding keys they no longer needed. This is why the quarterly check-in for ad hoc access control matters more than any policy on paper.
Ad hoc access control thrives on speed and flexibility. It lets you grant access when a project demands it without waiting for rigid provisioning workflows. But without a regular inspection point, these quick decisions stack up into a hidden backlog of unnecessary privileges. That backlog is risk disguised as convenience.
A quarterly check-in is not just a suggestion. It is the operational heartbeat that keeps your access model healthy. Every 90 days, review every temporary grant. Ask: is this still in use? Was it originally scoped to the right resources? Can it be revoked without breaking the work? These are not theoretical questions — they decide whether your systems remain secure while staying fast to adapt.