Service accounts: what IAM teams are missing in governance

TL;DR: Service accounts support automation and integrations, but poor discovery, weak classification, excessive privilege, and inconsistent monitoring leave them exposed across enterprise environments, according to Zluri’s analysis. The core issue is not how many service accounts exist, but whether teams can inventory, restrict, and retire them before they become dormant access paths.

NHIMG editorial — based on content published by Zluri: Security & Compliance 7 Best Practices For Service Accounts

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
• 71% of NHIs are not rotated within recommended time frames, increasing the risk of compromise over time.

Questions worth separating out

Q: How should security teams govern service accounts in large environments?

A: They should treat service accounts as governed machine identities with named ownership, explicit purpose, tight privilege scope, and lifecycle controls.

Q: Why do service accounts with broad access increase security risk?

A: Broad access increases risk because service accounts are often non-interactive, long-lived, and reused across systems.

Q: What do organisations get wrong about service account lifecycle management?

A: They often manage service accounts as static infrastructure rather than identities with a lifecycle.

Practitioner guidance

• Inventory every service account and assign ownership Create a single inventory across applications, databases, schedulers, and cloud services.
• Reduce privileges to the minimum workflow scope Remove broad admin rights, deny unnecessary registry and file access, and constrain machine logon scope and duration to the exact process the account supports.
• Tie rotation to service lifecycle events Rotate credentials on a defined schedule and also when the backing application changes, a vendor relationship ends, or an account is no longer required.

What's in the full article

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

• Step-by-step service account discovery and documentation workflow for IT teams
• Examples of access restriction patterns such as ACL limits and login-time constraints
• Operational guidance for monitoring, reporting, and periodic review of service account activity
• Automation-oriented governance steps for provisioning, deprovisioning, and audit consistency

👉 Read Zluri's service account security best practices for IT teams →

Service accounts: what IAM teams are missing in governance?

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