How should security teams manage shared and privileged passwords in the enterprise?

Why This Matters for Security Teams

Shared and privileged passwords are rarely just an inconvenience. They are high-value secrets that often sit at the center of service accounts, admin access, break-glass workflows, and vendor integrations. Once one password is reused across people or systems, the security team loses clear attribution, hardens incident response, and creates a durable foothold for attackers. NHIMG research shows that 79% of organisations have experienced secrets leaks, and 77% of those incidents caused tangible damage, which is why password handling belongs in identity governance, not ad hoc operations.

The real risk is not storage alone. It is uncontrolled lifecycle: overlong validity, unclear ownership, weak rotation discipline, and inconsistent audit trails. That is why current guidance from OWASP Non-Human Identity Top 10 and the NIST Cybersecurity Framework 2.0 both push organisations toward stronger secrets governance, least privilege, and traceability. In practice, many security teams encounter password misuse only after a shared account is abused in an investigation, rather than through intentional control design.

How It Works in Practice

Security teams should treat every shared or privileged password as a centrally managed secret with a named owner, a defined purpose, a clear expiry, and an enforced rotation policy. The operational goal is to reduce the password from a standing credential to a time-bound control. That usually means storing it in a vault, limiting who can request it, issuing access just in time, and recording each checkout or use in a tamper-resistant audit log.

In mature environments, the workflow is straightforward:

• Store the password in a secrets manager, not in email, chat, code, or spreadsheets.
• Bind access to role, ticket, approval, or session context so requesters can only retrieve what they need.
• Rotate on a schedule and after every privileged use where the system supports it.
• Prefer session-based access or ephemeral elevation over handing out the static secret itself.
• Review usage logs for anomalies such as unusual time-of-day access, repeated retrievals, or access from new hosts.

For shared administrative credentials, the best practice is evolving toward replacing passwords entirely with named accounts, Privileged Access Management, and short-lived tokens. Where that is not yet possible, the password must still be governed as if compromise is expected. The Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs and the NHI Lifecycle Management Guide both emphasise lifecycle control, not just vault placement. That aligns with the broader NHI pattern: 71% of NHIs are not rotated within recommended time frames, which makes stale privileged secrets a recurring exposure point. These controls tend to break down in legacy applications and shared operational accounts because the application cannot tolerate rotation, session binding, or per-user attribution.

Common Variations and Edge Cases

Tighter password control often increases operational friction, requiring organisations to balance emergency access and admin convenience against traceability and revocation speed. That tradeoff is real, especially for break-glass accounts, vendor support accounts, and legacy platforms that cannot use modern federation.

Break-glass credentials should be handled as exceptional, time-limited access paths with separate monitoring, documented approval, and post-use rotation. Vendor-shared passwords are another common exception, but they should be reduced wherever possible because attribution is weak and offboarding is difficult. NHIMG research notes that only 20% of organisations have formal processes for offboarding and revoking API keys, which reflects a broader lifecycle gap that also affects shared passwords. For audit and risk teams, the key question is not whether a secret exists, but whether its use can be justified, traced, and revoked quickly.

Where the environment includes mainframes, OT, or legacy middleware, there is no universal standard for this yet. In those cases, current guidance suggests compensating controls such as tighter vault policies, shorter rotation windows where feasible, session recording, and stronger segmentation. The Ultimate Guide to NHIs — Key Challenges and Risks and Ultimate Guide to NHIs — Regulatory and Audit Perspectives are useful references when building those exceptions into policy without weakening the control model.

Related resources from NHI Mgmt Group

• How should security teams govern privileged access after authentication?
• How should security teams implement PAM for regulated privileged access?
• How should security teams implement temporary privileged access without creating new blind spots?
• What do security teams get wrong about privileged access in healthcare and similar sectors?