They assume the cryptography solves the governance problem. In reality, passwordless success depends on device trust, recovery design, user support, and the removal of weak alternate login methods. If those pieces are not controlled, the organisation may modernise authentication while preserving the same operational exposure.
Why This Matters for Security Teams
Passkeys remove phishing-prone passwords, but they do not remove the governance problem around identity lifecycle, device trust, recovery, and fallback paths. A team can deploy WebAuthn-based sign-in and still leave account takeover routes open through weak help desk processes, unmanaged devices, or legacy login methods. Current guidance from NIST Cybersecurity Framework 2.0 still points security leaders toward identity assurance, recovery resilience, and continuous risk management rather than a single authentication control.
The most common failure is treating passkeys as a “set it and forget it” replacement for passwords. That mindset ignores operational realities: users lose devices, organizations need break-glass access, and some applications still depend on weaker alternate routes. In NHI Management Group research, 96% of organisations store secrets outside of secrets managers in vulnerable locations including code, config files, and CI/CD tools, which is a reminder that one modern control rarely fixes a broader identity sprawl problem. The same pattern appears in passwordless rollouts when old paths are left alive alongside the new ones. In practice, many security teams discover that passkeys were working as designed only after recovery abuse or legacy fallback misuse has already occurred.
How It Works in Practice
Passkeys improve authentication by binding a user’s login to a cryptographic key pair, usually protected by a device or secure enclave. The private key stays on the user’s device; the public key is registered with the service. That design removes shared secrets and reduces phishing risk, but it does not automatically establish strong governance around who can enroll devices, who can recover accounts, and what happens when a device is lost or compromised. A mature rollout needs more than technical enablement.
Security teams usually need to manage four layers together:
- Device trust: define whether only managed, healthy devices can create or use passkeys.
- Recovery design: limit help desk resets, step-up recovery, and alternate verification paths.
- Fallback removal: retire SMS, email-link, and password recovery routes where possible.
- Lifecycle visibility: track enrollment, deletion, device changes, and dormant credentials.
That lifecycle view is consistent with the operating model described in Ultimate Guide to NHIs, even though passkeys are human authentication rather than NHI credentials. The same governance lesson applies: cryptography is only one control plane, and it fails operationally when lifecycle and access paths are not governed end to end. For implementation detail, current identity guidance from NIST Cybersecurity Framework 2.0 supports a broader view of authentication as part of access control and risk treatment, not a standalone fix. These controls tend to break down in high-volume consumer support environments because account recovery pressure pushes staff toward exceptions that quietly recreate password-era weaknesses.
Common Variations and Edge Cases
Tighter passkey governance often increases support overhead, requiring organisations to balance user convenience against account recovery risk. That tradeoff is especially visible during device loss, employee onboarding, and customer-facing migrations. Best practice is evolving, and there is no universal standard for recovery assurance across all industries yet.
Some organisations allow passkeys only as one factor in a broader MFA flow, while others make them the primary sign-in method and remove passwords entirely. The safer option depends on how strong the remaining controls are. If the organisation still permits email-based resets, shared admin accounts, or unmanaged personal devices, passkeys may lower phishing risk without materially improving overall identity assurance. The biggest mistake is assuming a stronger authenticator eliminates the need for access governance.
For example, a well-implemented passkey program can still be undercut by:
- insecure account recovery handled by support staff without strong verification
- legacy applications that only support passwords or static backup codes
- shadow IT sign-in paths that bypass central policy
- shared family or kiosk devices where device trust is ambiguous
NHI Management Group’s research on Ultimate Guide to NHIs shows how often organisations struggle with lifecycle control and visibility; the same governance gap appears when passkeys are introduced without removal of weak alternates. The practical test is not whether passkeys are enabled, but whether every remaining path to the account is equally controlled.
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 SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA | Passkey rollout is really an identity assurance and recovery governance problem. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Fallback paths and recovery weaknesses mirror identity lifecycle exposure patterns. |
| NIST SP 800-63 | Digital identity assurance depends on recovery and authenticator binding, not just login crypto. |
Treat passkeys as one access control within a broader authentication and recovery risk program.
Related resources from NHI Mgmt Group
- What do organisations get wrong when they treat CBAC as a replacement for least privilege?
- What do organisations get wrong about CAPTCHA and password defense?
- What do organisations get wrong when they treat identity verification as a pilot project?
- What do organisations get wrong when they treat human, machine, and AI identities the same?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 23, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
