Without a recovery and migration plan, passkeys can become a lockout risk instead of a usability improvement. Users who lose a device, change platforms, or cannot complete enrollment may be forced back to weaker fallback methods. That creates operational drag, higher support costs, and pressure to keep legacy authentication alive longer than intended.
Why passkeys become a problem without recovery and migration planning
Passkeys improve sign-in when the user can reliably carry the enrolled authenticator across devices and platforms. The failure case is not the passkey itself, it is the absence of an exit path. If enrolment, device replacement, account transfer, or cross-platform portability is not designed up front, authentication becomes dependent on a single possession factor that can strand the user.
That is why the operational question is less “Are passkeys secure?” and more “What happens when the original device is unavailable?” Without a recovery design, the organisation often keeps password reset, help desk verification, or other fallback routes alive longer than planned, which weakens the intended phishing-resistant posture and delays adoption of stronger authentication.
Where the lifecycle breaks: enrolment, replacement, and fallback
Passkey failures usually appear at the edges of the lifecycle. A user may lose a phone, replace a laptop, change operating systems, clear a browser profile, or move between personal and managed devices. If the organisation has not defined how a passkey is re-established, the user is forced into a recovery workflow that may be slower, more fragile, or more permissive than the primary sign-in path.
That lifecycle gap is also where migration pain shows up. New passkey deployments often coexist with legacy passwords, MFA, and recovery codes during transition. If the migration plan is unclear, teams end up with inconsistent enrollment states, duplicate authenticators, and support cases that cannot be resolved cleanly without manual intervention. Passkeys then stop being a simplification and become another state to reconcile.
For a broader identity view of how credential and lifecycle failures create operational exposure, see NHI Mgmt Group’s Ultimate Guide to NHIs and the section on Non-Human Identities, which explains how lifecycle control and revocation discipline shape access resilience.
What practitioners should verify before making passkeys the default
Good passkey rollout is a recovery design problem as much as an authentication design problem. The minimum checks are whether users can register more than one authenticator, whether account recovery has stronger identity proofing than ordinary support flows, whether replacement devices can be enrolled without creating an override channel, and whether legacy fallback can be reduced instead of becoming permanent.
Practitioner judgment matters most when a control looks secure but fails under disruption. If the only successful recovery path is help desk escalation, the organisation has not removed the old risk, it has relocated it. If the only way to restore access is to re-enable passwords, then the passkey programme is still dependent on the weakest method in the stack. For implementation discipline, the OWASP Non-Human Identity Top 10 is useful as a reminder that lifecycle control, rotation discipline, and fallback design matter whenever an authenticator becomes operationally central.
At the platform level, NIST SP 800-63 Digital Identity Guidelines is the most relevant external reference for recovery assurance, while the NIST Cybersecurity Framework 2.0 is helpful for framing the wider govern-protect-recover responsibilities around the authentication lifecycle. For implementation detail on identity controls, NIST SP 800-53 Rev 5 Security and Privacy Controls remains a useful control catalogue.
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 SP 800-63, NIST CSF 2.0 and CIS Controls v8 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-63 | Recovery and Enrollment Assurance — Digital Identity Recovery and Enrollment Assurance | Passkey recovery depends on assurance during re-enrollment and account restoration. |
| Recommendation — Use strong recovery assurance and re-enrollment rules before allowing a new passkey to replace a lost one. | ||
| NIST CSF 2.0 | GV.OC-01 — Organizational Context | Passkey migration changes user access operations and support obligations across the identity lifecycle. |
| PR.AA — Identity Management, Authentication and Access Control | Passkeys are an authentication control whose value depends on enrollment, recovery, and fallback design. | |
| Recommendation — Define passkey rollout and recovery as an organization-level identity service change with clear ownership. Treat passkey enrollment, recovery, and fallback paths as part of the authentication control design. | ||
| CIS Controls v8 | 6 — Access Control Management | Passkey fallback and account recovery directly affect who can regain access and under what conditions. |
| 5 — Account Management | Migration to passkeys requires clean account lifecycle handling for enrollment, replacement, and deprovisioning. | |
| Recommendation — Limit recovery paths and review fallback access so weaker methods do not become permanent. Maintain accurate account lifecycle records so passkey replacement and revocation remain controlled. | ||
| OWASP Non-Human Identity Top 10 | NHI-03 — Credential Rotation and Revocation | The same lifecycle discipline applies when an authenticator must be replaced or revoked during migration. |
| NHI-06 — Secrets Exposure and Storage | Recovery designs often rely on backup material or fallback secrets that can create additional exposure. | |
| Recommendation — Plan for replacement and revocation so old authenticators and fallback methods do not linger. Keep recovery material tightly controlled and avoid storing fallback secrets in exposed locations. | ||
Practitioner Guidance
What to prioritise: Design the recovery path before broad rollout. If users cannot lose a device and regain access without weakening the primary posture, the programme is not ready to be the default authentication method.
What to verify: Confirm that replacement-device enrollment, account recovery, and support escalation all use stronger assurance than routine sign-in. The recovery process should not quietly become the most permissive path in the system.
Common mistake: Treating passkeys as a drop-in replacement for passwords. In practice, the migration period is where risk concentrates, because old and new methods coexist and the organisation is tempted to preserve legacy fallback indefinitely.
Practitioner takeaway: Passkeys succeed only when they are part of a complete lifecycle, including recovery, transfer, and deprecation of weaker methods. Without that, you improve the login experience for normal days but increase the chance of lockout and exception handling on bad days.
Related resources from NHI Mgmt Group
- What happens if teams enable encrypted resource metadata without a clear migration plan?
- What happens when organizations try to modernize IAM without a phased migration plan?
- What happens when organisations offer passkeys without a reliable recovery path?
- What happens when passkeys are used as the primary login method without a good recovery process?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 18, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
