Microsoft Tightens Security for Self-Service Password Reset

Microsoft plans to improve the security of the Self-Service Password Reset (SSPR) facility in September 2026 by requiring users to register at least one authentication method. SSPR will then use the registered authentication method to verify user accounts when changing passwords. The change aligns SSPR with user sign-ins and improves security by removing fallback on directory attributes, which might be altered by attackers.

https://office365itpros.com/2026/06/17/sspr-authentication-methods/