Microsoft to retire SMS first-factor for Entra ID by Feb 2027, urges passkey migration

Microsoft announced it will retire SMS first-factor sign-in for Entra ID starting February 2027, pushing admins to migrate users to phishing-resistant methods like passkeys. The move is part of a broader industry shift away from SMS-based authentication due to security risks. Organizations that fail to migrate may face sign-in disruptions, creating urgency for enterprise identity management changes.