Non-human identities—service accounts, workloads, bots, APIs—now outnumber human users in modern systems. They run critical operations, ship workloads across environments, and trigger automation pipelines. Yet they often have broad, static permissions that violate least privilege and leave attack surfaces exposed.
Ad hoc access control for non-human identities changes that. Instead of granting blanket permissions, it creates just-in-time, narrowly scoped rights on demand. A build server can deploy once, then lose that access. A function can reach a database for seconds, not days. Permissions vanish as soon as the task is done.
This model reduces the blast radius of a breach, limits privilege escalation, and enforces granular policy without slowing legitimate operations. It also makes audits easier: every elevation is logged, tied to a specific workload identity, and traceable across systems.