🔴 Microsoft to Disable SMS as Primary Entra ID Sign-In Method in 2027

Microsoft will turn off SMS as a primary sign-in method for Microsoft Entra ID workforce tenants on February 1, 2027, accelerating its transition to phishing-resistant authentication.

This change affects workers who currently use a registered phone number and a one-time SMS code as their initial sign-in credential, a passwordless flow utilized by frontline organizations.