Short answer: non-human identities — service accounts, keys, certificates, and now AI agents — outnumber humans by orders of magnitude, are usually over-privileged, and are rarely owned or reviewed. Governing them starts with one question: what can this identity actually reach?
Human IAM is a solved problem with owners and reviews. The non-human side grew in the dark: a key here, a service account there, an agent identity nobody chartered. Each is a door, and most are propped open wider than anyone intended.
Every machine identity is an unmapped blast radius until you draw it.
What is a non-human identity?
Any machine, service account, API key, certificate, or AI agent that authenticates and acts in your systems. They don't log in like people; they're provisioned, copied, and forgotten — which is exactly why they accumulate risk.
One service account — three resources reachable, one over-privileged, one orphaned with no owner. This is the default state, not the exception.
How do you govern them without drowning?
Don't start with a list of 4,000 credentials. Start with reach. Combine each identity's permissions with network reachability to compute its blast radius, then sort by the two failures that matter most:
- Over-privileged: can reach far more than its job requires.
- Orphaned: still valid, no owner, no rotation.
NHI governance is one of three converging disciplines — with AI-SPM and CTEM — that define modern posture. The trick is never analysing identity in isolation from what it can touch.
Map your machine identities and their blast radius. Request early access →
Keep reading: NHI Governance product · Stop counting CVEs