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Microsoft to end SMS, voice authentication for Entra ID, urges switch to passkeys

Microsoft has again asked administrators of its cloud-based account and login management service Entra ID to switch user authentication to passkeys, BleepingComputer reported on Oct. 28. Microsoft will end SMS and voice authentication in February 2027. The change applies only to Entra ID for corporate employees, excluding Azure AD B2C and Entra External ID. After the cutoff, users will not be able to use SMS or voice for MFA.