Service accounts vs user accounts: what IAM teams need to separate

TL;DR: Service accounts are non-human privileged identities used by systems, while user accounts are assigned to people, and the distinction shapes how access is granted, reviewed, and revoked across SaaS, cloud, and internal applications, according to Zluri. The governance problem is not naming alone; it is that machine access often carries human-style oversight, which leaves privilege and accountability mismatched.

NHIMG editorial — based on content published by Zluri: Security & Compliance Service Accounts Vs User Accounts

Questions worth separating out

Q: How should security teams govern service accounts differently from user accounts?

A: Security teams should govern service accounts as persistent non-human identities with explicit ownership, narrowly scoped permissions, and separate review logic from employee accounts.

Q: Why do service accounts create more governance risk than ordinary user accounts?

A: Service accounts often hold broad, unattended access that outlives the people and systems that created them.

Q: How do organisations know if service account access review is actually working?

A: Access review is working when every service account has a named owner, a clear business purpose, a documented last-use signal, and an outcome that changes access when the evidence does not justify it.

Practitioner guidance

• Separate human and non-human lifecycle workflows Run joiner, mover, and leaver processes for employee accounts and service accounts on different approval paths, with different evidence requirements and different recertification rules.
• Assign explicit owners to every service account Attach a business owner and a technical owner to each service account so accountability survives staff turnover, application changes, and platform migrations.
• Reduce privilege on persistent machine identities Review service account entitlements for overbroad access to SaaS apps, databases, and infrastructure, then trim permissions to the minimum operational scope.

What's in the full article

Zluri's full article covers the operational detail this post intentionally leaves for the source:

• Account-by-account comparison of service account types across Linux, Unix, Windows, and cloud environments
• Stepwise discovery approach for finding service and user accounts across directories, SaaS apps, and integrations
• Access review automation flow, including certification creation, reviewer workflow, and auto-remediation actions
• Platform-specific implementation detail for managing employee owners of service accounts and reviewing their permissions

👉 Read Zluri's article on service accounts vs user accounts →

Service accounts vs user accounts: what IAM teams need to separate?

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