Microsoft reminds admins to migrate Entra ID users to passkeys

Microsoft reminds admins to migrate Entra ID users to phishing-resistant authentication methods to avoid sign-in disruptions after it retires SMS first-factor sign-in starting in February 2027. The change affects organizations relying on SMS for initial sign-in, pushing them toward passkeys or other secure methods. Admins should plan migration ahead of the retirement date to ensure uninterrupted access.