When the organisation is ready to govern the full lifecycle, including enrollment, loss recovery, and fallback removal. Passkeys improve resistance to phishing and replay, but they only reduce risk if the surrounding identity processes do not reintroduce weaker access paths.
Why This Matters for Security Teams
Passkeys are not just a stronger login method. They are a way to reduce recovery-driven risk, especially where password resets and SMS MFA have become the default way users regain access after lockout, device loss, or suspected compromise. That matters because the weakest point is often not initial authentication, but the fallback path that quietly reintroduces phishing, SIM swap, or help desk abuse. NIST Cybersecurity Framework 2.0 frames this as an access governance problem, not just an authentication upgrade.
For identity teams, the real decision is whether the organisation can absorb the operational change that passkeys demand: enrollment, device binding, loss recovery, and removal of weaker recovery methods. If those controls are immature, a passkey rollout can simply add one more credential type without eliminating the old attack paths. NHI Mgmt Group’s Ultimate Guide to NHIs shows how quickly identity risk grows when lifecycle controls lag behind the control plane; the same pattern appears in human identity recovery. In practice, many security teams encounter credential abuse only after reset workflows or SMS fallback have already been used to bypass stronger authentication.
How It Works in Practice
Identity teams should prioritize passkeys when they can manage the full identity lifecycle with the same discipline they apply to privileged access. The practical sequence is usually: enroll passkeys, preserve at least one secure recovery path, then remove password reset dependence and phase out SMS MFA for accounts where phishing resistance matters most. The goal is to shrink the number of ways an attacker can socially engineer access, not to add another option that sits beside legacy fallback.
Passkeys work best when they are paired with stronger governance around help desk procedures, device attestation, and recovery proofing. Current guidance suggests that passkeys should be treated as part of an end-to-end assurance model, not as a standalone control. That means:
- binding enrollment to verified identity proofing and device possession;
- using secure recovery methods that do not depend on SMS;
- removing passwords where the use case and user population allow it;
- logging and reviewing fallback events as high-risk identity actions;
- aligning policy with NIST Cybersecurity Framework 2.0 for identity assurance and recovery governance.
This is also where broader identity hygiene matters. NHI Mgmt Group’s Ultimate Guide to NHIs highlights how weak lifecycle management creates durable exposure; that lesson applies directly when password resets or SMS remain available as shadow recovery paths. These controls tend to break down when service desks, legacy apps, and distributed workforces require exceptions because the organisation cannot consistently enforce the same recovery standard everywhere.
Common Variations and Edge Cases
Tighter passkey enforcement often increases enrollment and support overhead, requiring organisations to balance phishing resistance against user recovery friction. That tradeoff is most visible in high-volume environments, shared-device environments, and populations with limited device continuity. In those cases, best practice is evolving rather than settled, and there is no universal standard for whether passkeys should fully replace passwords or coexist with them for a transition period.
SMS MFA can still appear in narrowly scoped exceptions, but it should not remain the default recovery factor for sensitive populations. Organisations should be especially cautious where help desk resets are common, executive accounts are targeted, or legacy identity systems cannot yet support phishing-resistant methods. The issue is not whether passkeys are stronger, because they are. The issue is whether the surrounding identity stack can eliminate weaker fallback without creating lockout or operational failure. For many teams, the answer is to prioritize passkeys first for administrators, finance, HR, and remote-access users, then expand once recovery and deprovisioning are reliable.
As NHIMG research on 52 NHI Breaches Analysis shows, identity compromises often succeed through process gaps rather than technical weakness alone. The same pattern applies here: the control is only as strong as the fallback path.
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, NIST SP 800-63, NIST Zero Trust (SP 800-207) and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA | Identity assurance and access governance cover passkey adoption and fallback removal. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Lifecycle governance is relevant when passkeys replace passwords and SMS fallback. |
| NIST SP 800-63 | AAL2 | Passkeys are a phishing-resistant authenticator choice aligned to assurance levels. |
| NIST Zero Trust (SP 800-207) | PR.AC-1 | Zero Trust requires continuous verification, including stronger authentication methods. |
| NIST AI RMF | GOVERN | AI risk governance is less direct but supports modern identity assurance decisions. |
Use PR.AA to replace weak recovery paths with phishing-resistant authentication and documented recovery controls.
Related resources from NHI Mgmt Group
- When should teams prioritize identity fabric over another point solution?
- How should security teams secure help desk password resets and MFA enrolment?
- How should security teams reduce identity risk when MFA still relies on passwords and SMS codes?
- Why do hardware-backed passkeys matter for identity governance?
