Cannot generate Passkey

Sandy Butts 0 Reputation points
2026-10-11T16:07:03.77+00:00

I have never been able to add a passkey, I always receive the attached IMG_3764.pngerror message. I’ve checked my settings, updates, etc. and can’t figure out why this is happening.

Please advise,

Sandy

Microsoft Security | Microsoft Authenticator
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  1. Alan La Pietra (CSA) 400 Reputation points Microsoft Employee
    2026-10-14T11:24:33.83+00:00

    If this is a Microsoft Entra work/school account and you're trying to create a device-bound passkey in Microsoft Authenticator on iOS, "Failed to add passkey" is often caused by the iPhone/Auth​enticator prerequisites, Entra Passkey policy, attestation, or Conditional Access.

    For Passkey in Microsoft Authenticator, Microsoft currently requires iOS 17 or later.

    Verify:

    • iOS 17+
    • Latest Microsoft Authenticator
    • Face ID/Touch ID or device PIN configured
    • Authenticator has the affected work/school account added
    • Internet connectivity is working
    • Check Entra passkey policy
    • Check iOS authenticator AAGUID. This is especially important if you've configured AAGUID restrictions.

    Microsoft lists the Authenticator for iOS AAGUID as: 90a3ccdf-635c-4729-a248-9b709135078f

    • Check whther you are requiring attestation
    • Check Conditional Access
    • Register directly from authenticator

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