Who is accountable for reducing identity blind spots across human and non-human identities?

Why This Matters for Security Teams

Identity blind spots are not just a visibility problem. They become an accountability problem when no one can prove who owns a service account, API key, bot, workload, or privileged human entitlement. That gap weakens incident response, slows remediation, and turns routine access drift into business risk. NHI Management Group research shows that only 5.7% of organisations have full visibility into their service accounts, which helps explain why blind spots persist even in mature environments. See the Ultimate Guide to NHIs and NIST SP 800-53 Rev 5 Security and Privacy Controls for the governance baseline.

The teams most often caught out are those that treat identity inventory as a periodic cleanup exercise instead of an operational control. When ownership is missing, discovered identities sit in limbo: they are visible enough to be worrying, but not tied to a system owner, lifecycle process, or remediation path. In practice, many security teams encounter orphaned access only after a breach review or audit finding has already exposed the gap.

How It Works in Practice

Accountability for reducing identity blind spots should be shared, but not diffuse. Identity security and IAM teams usually set the control model, the discovery method, and the minimum governance standard. Risk leadership defines what level of exposure is acceptable, and system owners are responsible for remediating the identities their platforms create. That split matters because discovery alone does not fix anything unless each identity can be mapped to an owner, a purpose, and a lifecycle action.

A practical operating model usually includes:

• continuous discovery of human and non-human identities across cloud, SaaS, CI/CD, directories, and infrastructure;
• ownership tagging at creation time, with escalation when an owner cannot be confirmed;
• clear remediation paths for stale accounts, excessive privileges, and expired secrets;
• policy-backed reviews that measure whether identities still match business need;
• evidence capture for audit and incident response.

For non-human identities, this is especially important because the blast radius is often larger than teams expect. NHIs outnumber human identities by 25x to 50x in modern enterprises, and NHI Mgmt Group reports that 97% of NHIs carry excessive privileges in the Ultimate Guide to NHIs. That is why the control objective is not simply “find identities,” but “assign accountable ownership and remove uncontrolled access.” The control pattern aligns well with NIST SP 800-53 Rev 5 and with emerging NHI governance guidance in the Top 10 NHI Issues.

These controls tend to break down when identities are created automatically by pipelines, temporary projects, or third-party integrations because ownership is lost at the moment of provisioning.

Common Variations and Edge Cases

Tighter ownership controls often increase operational overhead, requiring organisations to balance remediation speed against the friction of approving every identity change. That tradeoff is real in engineering-heavy environments where identities are created dynamically and decommissioned quickly.

Best practice is evolving for agentic systems, ephemeral workloads, and shared platform accounts. There is no universal standard for this yet, but current guidance suggests the same accountability principle should still apply: every autonomous workload needs a named business owner, a technical owner, and a revocation path. Where the identity is generated by a platform team, the platform team may own the control plane while application owners own the workload’s business use.

Edge cases include vendor-managed integrations, shared service accounts, and legacy systems that cannot support unique ownership tags. In those cases, risk leadership should set compensating controls such as review cadences, tighter secret rotation, and explicit retirement deadlines. The important point is that unresolved ownership should never become a permanent exception. The longer an identity remains unattributed, the more likely it is to become an orphaned access path or a hidden escalation route.

For teams prioritising the highest-risk blind spots, the strongest evidence usually comes from 52 NHI Breaches Analysis, which shows how often weak ownership and weak lifecycle control appear together in real incidents.

Related resources from NHI Mgmt Group

• Who is accountable for identity risk across employees, third parties, and non-human identities during a cyber incident?
• What breaks when identity security only covers a portion of users and non-human identities?
• How should security teams unify identity controls across human and non-human access in complex enterprise environments?
• Who is accountable for auditing non-human access across humans and machines?