Passwords remain exposed to reuse, phishing, guessing, and large-scale leak reuse. Even mature IAM programmes struggle when knowledge factors are still the fallback for privileged or high-value access, because the attack surface sits in the secret itself, not only in authentication policy.
Why This Matters for Security Teams
Passwords are not just a weak login method. They create a persistent identity risk because the secret itself can be reused, phished, guessed, copied into tickets, or replayed long after the original event. Even mature IAM programmes can still leave high-value access exposed when knowledge factors remain the fallback for admins, service desks, break-glass paths, or legacy applications. NIST’s Cybersecurity Framework 2.0 treats identity as a core risk domain, but the practical issue is that passwords are durable in the wrong way: they persist beyond the session, the device, and often the user’s intent.
NHIMG research shows the gap is not theoretical. In The 2024 Non-Human Identity Security Report, 88.5% of organisations said their non-human IAM practices lag behind or are only on par with human IAM, which is a useful indicator of how often secret-based access still survives in mature environments. The same pattern appears in incident analysis such as the 52 NHI Breaches Analysis, where exposed secrets repeatedly become the first step in wider compromise.
In practice, many security teams encounter password-driven identity risk only after a helpdesk abuse, token theft, or privileged account misuse has already turned into a breach.
How It Works in Practice
Persistent password risk comes from the fact that a password is both an authenticator and a reusable bearer secret. If it is stolen once, it can often be tested repeatedly until it works, especially where MFA gaps, weak recovery flows, or shared admin accounts exist. Mature IAM programmes often reduce the number of passwords, but they do not eliminate the operational patterns that make them dangerous: reset workflows, exceptions, service accounts, emergency access, and interoperability with older systems.
A practical response is to treat passwords as a transitional control, not a durable trust anchor. That means moving high-value access toward phishing-resistant factors, shortening the lifetime of privileged credentials, and enforcing stronger controls around recovery and step-up authentication. It also means assuming that password compromise will happen somewhere and limiting the blast radius through NHI risk reduction practices such as secret inventorying, rotation, and least-privilege access boundaries.
- Eliminate passwords for admin and break-glass access where possible.
- Use phishing-resistant MFA for all privileged sessions.
- Rotate any remaining secrets and remove shared credentials.
- Audit recovery paths, not just primary login paths.
- Replace static secrets in workload and automation access with short-lived credentials.
For implementation guidance, CISA’s Zero Trust Maturity Model reinforces the need to verify explicitly and reduce trust in long-lived credentials, while NIST CSF 2.0 supports identity-centric governance and continuous risk management. These controls tend to break down when legacy applications require shared passwords that cannot support modern session assurance or device-bound authentication.
Common Variations and Edge Cases
Tighter password controls often increase operational overhead, requiring organisations to balance stronger assurance against user friction, support load, and application compatibility. That tradeoff is most visible in emergency access, third-party portals, and systems that cannot support modern authentication methods.
There is no universal standard for eliminating passwords everywhere yet, so current guidance suggests a phased approach: remove passwords from privileged workflows first, then reduce them in business-critical user journeys, and finally retire them where application constraints allow. The hardest edge cases are service accounts, vendor-maintained systems, and air-gapped or highly regulated environments, where password rotation alone can create false confidence if the secret still exists in scripts, vaults, or backup channels.
NHIMG’s OWASP NHI Top 10 and the Top 10 NHI Issues both reflect the same operational lesson: secret sprawl is usually the real problem, not the login screen itself. In mature IAM programmes, the residual risk often lives in exceptions, not in the main authentication flow.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Passwords persist as reusable secrets, which is the core NHI exposure NHI-03 addresses. |
| NIST CSF 2.0 | PR.AC-1 | Identity proofing and authentication controls are central to limiting password-driven access risk. |
| NIST AI RMF | Persistent secret risk is part of trustworthy system governance and ongoing risk monitoring. |
Reduce static secret exposure by rotating, shortening, and removing password-based access where possible.
