A serious security flaw in Microsoft Authenticator could allow attackers to gain access to services and accounts - the very thing the company's authentication app is designed to protect against.

An important and serious security flaw in Microsoft's Authenticator has now been discovered to allow hackers to steal sign-in tokens ...

Google Authenticator, the app that provides one-time codes to securely log in to your accounts, is probably the only app on ...

A vulnerability in Microsoft Authenticator for Android and iOS could expose login codes to malicious apps on the same device. Microsoft has released a patch. A newly discovered vulnerability in ...

Microsoft Authenticator to stop saving new passwords June 1. Update, May 4, 2025: This story, originally published May 2, has been updated with further information on the use of passkeys by Microsoft, ...