Microsoft to Make Passkeys Default Authentication in Entra ID Starting September 2026
Microsoft will make passkeys the default authentication method in Entra ID starting September 1, 2026. The move is designed to reduce dependence on phishing-vulnerable methods such as SMS codes and voice calls.
Users currently enabled for SMS or voice authentication will be automatically enrolled for passkey support. During their next multifactor authentication attempt, they will receive a prompt to register the new credential.
Passkeys use public-key cryptography and do not rely on shared secrets. This approach prevents phishing attacks, code interception, credential reuse, and techniques such as SIM swapping.
Supported Passkey Options
The Entra ID service supports both synced and device-bound passkeys. Synced credentials can be managed through iCloud Keychain and Google Password Manager. Device-bound options include Microsoft Authenticator, Windows Hello, and physical FIDO2 security keys.
Microsoft will simultaneously retire its native SMS and voice authentication service. This capability will cease to exist in Entra ID on February 1, 2027. After that date, tenants relying solely on SMS or voice for MFA must register a passkey to continue logging in. The requirement will be enforced without any deactivation option.
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