When should organisations move from password sharing to individual access and centralized credential controls?

Why This Matters for Security Teams

password sharing is usually a sign that access governance has drifted from identity to convenience. Once multiple people use the same account, teams lose attribution, cannot prove who performed which action, and often cannot revoke access cleanly when someone changes role or leaves. That is especially risky for secrets, API keys, and service accounts, which can be reused long after the original operational need has passed.

This is why NHI Management Group consistently treats shared credentials as a control failure, not a harmless shortcut. The issue is broader than auditability: shared access weakens least privilege, makes incident response slower, and increases the odds of credential sprawl across chat tools, tickets, and scripts. The Ultimate Guide to NHIs — Static vs Dynamic Secrets shows why static credentials become a liability as soon as access must be coordinated across people or systems. OWASP’s OWASP Non-Human Identity Top 10 reinforces the same point: identity controls must be tied to accountable principals, not reusable secrets.

In practice, many security teams only discover the weakness after an offboarding event, audit request, or breach investigation forces them to trace activity that shared credentials have already obscured.

How It Works in Practice

The move away from password sharing should start when access needs to be attributable, revocable, and scoped by role or task. That means each person gets an individual identity, and any shared operational dependency is handled through centralized credential controls such as a vault, PAM, or secrets manager. The account or secret may still be used by a system, but humans should no longer rely on a common password as the control plane.

Good practice is to separate human access from workload access. Humans authenticate with their own identities and receive only the permissions they need. Systems and automations use dedicated non-human identities with managed secrets, rotation, and short-lived credentials where possible. The Guide to the Secret Sprawl Challenge is a useful reminder that once secrets are copied into notes, chat, and scripts, central control is already eroding. NIST’s NIST SP 800-53 Rev 5 Security and Privacy Controls supports this shift through access enforcement, audit logging, and credential management controls.

A practical rollout usually includes:

• Replacing shared passwords with named user accounts and role-based access.
• Moving reusable secrets into a centralized vault with approval and logging.
• Rotating any credential that has ever been shared outside the approved control boundary.
• Using JIT access or time-bound elevation for privileged tasks.
• Reviewing offboarding, emergency access, and contractor workflows to remove hidden dependency on shared logins.

NIST’s NIST SP 800-63 Digital Identity Guidelines is helpful when translating these controls into authenticatable user identities and stronger lifecycle management. These controls tend to break down in legacy environments where a vendor console, appliance, or scripted batch job only supports one reusable password and no individual account mapping.

Common Variations and Edge Cases

Tighter credential control often increases administrative overhead, requiring organisations to balance traceability against operational speed. That tradeoff is real in small teams, emergency support scenarios, and legacy platforms that were never designed for per-user access. Current guidance suggests that convenience should not justify permanent password sharing, but there is no universal standard for how quickly every environment must eliminate it.

One common edge case is a shared functional mailbox or admin console that multiple responders need during incidents. In those cases, best practice is evolving toward centralized control with named access, strong logging, and temporary elevation rather than a standing shared password. Another exception is machine-to-machine integration where no human should ever know the secret; that should be treated as a workload identity problem, not a password-sharing exception.

The NHIMG research on the 2024 Non-Human Identity Security Report shows how often organisations still rely on insecure sharing methods, which is why formalized control is important even when teams believe their use case is “just temporary.” For broader breach patterns, the 52 NHI Breaches Analysis shows that credential misuse rarely stays isolated once secrets begin circulating informally.

Shared access should end as soon as it becomes a habit rather than a short-lived exception. If a team cannot name the individual, the purpose, and the expiry of access, it is already overdue for centralized control.

Related resources from NHI Mgmt Group

• How should organisations handle EU Data Act data access and sharing requests without weakening privacy controls?
• Should organisations move away from passwords for high-risk access?
• How do organisations know if SAP MM access controls are actually working?
• Why does continuous controls monitoring matter when organisations move from manual to automated controls?