They fail when users must self-enroll, choose inconsistent settings, or complete multiple setup steps across different systems. That creates friction, weakens policy enforcement, and increases the chance of incomplete adoption. Central administration improves consistency, reduces setup errors, and gives security teams a clearer control point for authentication and access governance.
Why This Matters for Security Teams
Passkeys and smart cards are strongest when authentication is centrally governed, not when every user is asked to decide how, when, and where enrollment happens. Once provisioning is pushed to the edge, organisations inherit inconsistent device states, uneven policy enforcement, and avoidable support burden. That matters because authentication is not just a login step. It is a control point for access assurance, auditability, and revocation.
Security teams often assume strong cryptography will compensate for weak rollout design. It will not. If the enrolment path is fragmented, users skip steps, register the wrong device, or retain fallback methods that weaken the intended control. NIST SP 800-53 Rev 5 Security and Privacy Controls treats identity proofing, authentication, and access enforcement as managed control functions, not end-user preferences. NHIMG’s NHI Lifecycle Management Guide makes the same operational point for non-human identities: lifecycle control fails when ownership and state are dispersed.
In practice, many security teams discover passkey and smart card drift only after a help desk spike, a failed rollout, or a bypass path has already become normalised.
How It Works in Practice
The practical failure mode is simple: self-service provisioning turns a controlled identity process into a user-managed workflow. For passkeys, that can mean inconsistent platform support, multiple authenticators, weak recovery paths, and unclear ownership of the credential lifecycle. For smart cards, it often means certificate enrollment, middleware, PIN setup, and device binding are handled differently across teams or business units. The result is not just friction. It is inconsistent trust.
Central administration gives security teams a clear control point for issuance, assurance, and revocation. A mature programme typically defines who can enroll, what device classes are allowed, which attestation or proofing steps are mandatory, and how fallback methods are handled. That aligns better with Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs, which emphasizes lifecycle governance over ad hoc setup. It also fits the control discipline in NIST guidance, where authentication events should be traceable, policy-driven, and revocable.
- Issue credentials from a central workflow, not from unmanaged self-enrollment pages.
- Bind the credential to a known device or managed identity record before access is granted.
- Standardise recovery and replacement so exceptions do not become permanent backdoors.
- Track enrollment success, failure, and abandonment as security metrics, not just user-experience metrics.
For programme design, the important distinction is between user convenience and user control. Users can confirm prompts, approve device binding, or complete attestation steps. They should not be responsible for choosing policy, interpreting cryptographic options, or deciding when a fallback credential is acceptable. That distinction is especially important in environments with mixed endpoints, contractor populations, or legacy smart card infrastructure, because enrollment logic tends to break down when policy ownership is split across identity, endpoint, and application teams.
Common Variations and Edge Cases
Tighter central control often increases rollout complexity, so organisations must balance assurance against deployment speed. That tradeoff is real, especially during migrations from passwords or legacy badge-based authentication. Best practice is evolving here, but current guidance suggests that phased enrollment with enforced defaults is safer than unrestricted self-service, even if adoption is slower at first.
Edge cases usually appear where infrastructure is uneven. Shared workstations, regulated environments, air-gapped networks, and BYOD programmes each create different enrollment constraints. In those settings, a single provisioning model rarely works. Security teams may need separate flows for managed laptops, kiosk users, and privileged staff, while keeping the same policy baseline. NHIMG’s Top 10 NHI Issues highlights a related governance truth: inconsistent lifecycle handling is where strong identity controls lose value.
There is also a practical exception for recovery. A locked-out user still needs a safe path back in, but recovery should be more restrictive than initial enrollment and should never silently weaken the primary authentication policy. Programs fail when recovery is easier than enrollment, because that creates the exact bypass users and attackers will find first.
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 and CSA MAESTRO address the attack and risk surface, while NIST CSF 2.0, NIST SP 800-63 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA-1 | Identity and access are weakened when enrollment is inconsistent. |
| NIST SP 800-63 | Digital identity assurance depends on controlled enrollment and binding. | |
| OWASP Non-Human Identity Top 10 | NHI-01 | Lifecycle mismanagement mirrors the same provisioning failure pattern in NHI. |
| NIST AI RMF | Operational control of access credentials supports trustworthy system governance. | |
| CSA MAESTRO | Managed identity and provisioning are core to resilient security operations. |
Centralize authentication lifecycle controls and require enforced enrollment standards.
