How can security teams handle shared accounts without losing control?

Why This Matters for Security Teams

Shared accounts are risky because they collapse accountability. When multiple people know the same password, security teams lose the ability to answer basic questions: who used it, when, from where, and for what purpose. That turns routine administration into an access-control blind spot and makes incident response slower, because attribution depends on logs that may not distinguish one person from another.

For NHI governance, the key issue is not just the account itself but the access path around it. In the Ultimate Guide to NHIs — Standards, NHI Management Group notes that 79% of organisations have experienced secrets leaks and 73% of vaults are misconfigured, which shows how often informal access practices outgrow control. That pattern also aligns with the NIST Cybersecurity Framework 2.0, which emphasises governance, access control, and continuous oversight rather than trust-by-default sharing.

The operational problem is not whether a shared account is convenient, but whether it can be administered as a controlled identity with named ownership, limited scope, and revocation that actually works. In practice, many security teams discover the weakness only after a password has been reused, forwarded, or exposed in a chat thread, rather than through intentional review.

How It Works in Practice

The safest pattern is to replace informal sharing with a managed access path. That usually means a vault, role-bound checkout, session recording where appropriate, and a clear owner who can approve, review, and revoke access. The goal is not to make shared access “private” in a human sense, but to make it auditable and time-bound so the organisation can prove control.

For most teams, the practical sequence looks like this:

• Put the credential in a central secrets vault instead of chat, email, or documentation.
• Assign a single accountable owner for the account or secret.
• Require approval or ticket linkage for checkout when the account is used.
• Use short-lived access where possible, with automatic expiry after the task ends.
• Log every checkout, use, rotation, and revocation event for review.
• Review whether the account still needs to be shared at all, and remove it if a named service account or delegated access can replace it.

This is where NHI controls matter. Shared credentials should be treated like any other secret, which means rotation, offboarding, and monitoring need to be explicit. The State of Non-Human Identity Security highlights that lack of credential rotation is a leading cause of NHI-related attacks, and that over-privileged accounts are a common contributor. That is why shared access works best when paired with least privilege and periodic access recertification, not as a permanent convenience layer.

Current guidance suggests that where shared access is unavoidable, it should be mediated by PAM, secrets management, or equivalent controls that support traceability and rapid revocation. These controls tend to break down when teams keep a copy of the secret outside the vault because the “temporary” workaround becomes the primary access path.

Common Variations and Edge Cases

Tighter shared-account controls often increase friction, so organisations must balance speed against accountability. That tradeoff is real in break-glass access, legacy infrastructure, and vendor support scenarios where replacing a shared account immediately is not practical. Best practice is evolving, but there is no universal standard for this yet: teams should document the exception, define who can use it, and set a retirement date.

There are also cases where the right answer is not to manage sharing better, but to eliminate it. If a team uses a shared account for routine admin work, a named account with delegated privilege is usually a stronger pattern. If the account exists for automation, it should not be handled like a human-shared secret at all. It should be treated as an NHI with explicit ownership, rotation, and monitoring.

Additional care is needed when access spans contractors, incident responders, or third parties. The Ultimate Guide to NHIs — Standards shows how often organisations struggle with visibility into third-party access, so shared accounts in external workflows deserve stricter review than internal admin use. For broader identity programmes, the NIST Cybersecurity Framework 2.0 remains useful as a baseline for defining ownership, monitoring, and response expectations.

Related resources from NHI Mgmt Group

• How should security teams automate KYB without losing compliance control?
• How should security teams control unauthorized account sharing without hurting legitimate users?
• How should security teams back up identity providers without losing recoverability?
• How should security teams govern non-human identities alongside human accounts?