With this deprecation, Microsoft is attempting to standardize authentication flows across Microsoft 365 client applications.

A 16-year-old set one login field to "admin," and an estimated 17.3 trillion Microsoft rows became accessible.

Multifactor authentication can improve account and IT system security, protecting data against hackers. Learn how MFA works ...

Authorizer, an open-source authentication server, lets AI assistants check users' permissions before they search company ...

The vulnerability in question is CVE-2026-48842 (CVSS score: 8.1), a pre-authentication SQL injection in the virtuser_query plugin of Roundcube Webmail versions 1.6.x before 1.6.16 and 1.7.x before ...

Microsoft is retiring SMS first-factor sign-in for Microsoft Entra ID workforce tenants worldwide, requiring organizations to migrate affected users before February 1, 2027.

Microsoft shared a temporary fix on Wednesday for a known issue that prevents Windows 11 users from logging in with valid domain credentials after installing the September 2026 security updates.

Diablo 4 Season 15 is now live, but players are now facing a server authentication issue that’s preventing them from logging in. If you are getting error code ...

Microsoft has disclosed details of two campaigns in which threat actors are abusing third-party email delivery infrastructure to blast financial fraud scam messages and using passkey-themed social ...

Attackers abuse Active Directory replication in DCSync attacks to impersonate domain controllers and steal privileged password hashes.