Microsoft to Make Passkeys Default Authentication in Entra ID Starting September 2026
Microsoft will transition Entra ID users to passkeys as the standard authentication method beginning September 1, 2026. The change aims to eliminate reliance on phishing-prone SMS and voice call codes. Existing SMS and voice users will be prompted to register passkeys during their next multifactor authentication. Passkeys rely on public-key cryptography and avoid shared secrets, blocking phishing, interception, credential reuse, and SIM swapping attacks. Support includes synced passkeys via iCloud Keychain and Google Password Manager, plus device-bound options like Microsoft Authenticator, Windows, and FIDO2 hardware keys. Native SMS and voice services will be fully retired on February 1, 2027, forcing affected tenants to adopt passkeys with no opt-out option.
BoletimSecAug 17, 2026Translated from Portuguese