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Microsoft Is Killing Off SMS Authentication Codes as AI Makes Phishing Attacks Even More Dangerous

Microsoft will require passkeys or Microsoft Authenticator as AI-driven phishing and SIM swapping make SMS and voice sign-ins less secure.

Summary by Tech Spot
IT admins will no longer be able to log into Microsoft Entra ID accounts using SMS-based 2FA codes starting February 1. The deadline is part of Microsoft's broader shift toward passkeys, widely considered one of the most secure login methods.Read Entire Article

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Microsoft notified IT administrators that SMS and voice authentication will be blocked as of February 1, 2027 for Enter ID accounts, citing the increase in AI-assisted phishing and SIM exchange. *** Microsoft warns that AI facilitates phishing and SIM exchange. SMS and voice authentication will be blocked in Enter ID on February 1, 2027, with no opt-out option. Microsoft personal accounts will also phase out SMS as an authentication method. Micr…

Microsoft strongly warns against two-factor authentication with SMS. Behind this is the concern about AI-supported phishing. What changes for Microsoft users: soon for this reason. read more on t3n.de

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HubSite 365 broke the news on Wednesday, August 12, 2026.
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