Update 5/20: Microsoft now considers these authentication problems to be resolved, having released “out-of-band” updates on May 19, as described here. Microsoft this week acknowledged possible ...

This post will show you how to enable multifactor authentication in Microsoft 365. Multifactor Authentication (MFA) provides an extra level of security for sign-ins. In Microsoft 365, MFA includes a ...

Microsoft is investigating an ongoing incident that is causing users to experience errors with some Microsoft 365 authentication features. As the company revealed earlier today in an incident alert ...

Microsoft's public cloud computing platform, Azure, was recently targeted by a cyberattack that led to a multi-hour outage. While a newly announced mandatory two-factor authentication login ...

Microsoft has confirmed that Windows updates released since August 29, 2025, are breaking authentication on systems sharing Security Identifiers. Windows uses unique alphanumeric strings known as ...

Microsoft is apparently experiencing some kind of authentication issue which is preventing many from being able to sign in to their Outlook, Skype, OneDrive, Xbox, and other Microsoft accounts. A ...

Microsoft cited progress on enabling phishing-resistant authentications for organizations, in a Friday announcement. The announcement highlighted FIDO2 preview support for iOS and MacOS apps, ...

A thorough understanding of Windows' authentication methods will enable you to troubleshoot problems and improve network security. Here's a look at what you need to know. If you’re having problems ...

The Cybersecurity & Infrastructure Security Agency (CISA) is now advising federal agencies and others to patch a Windows flaw from Microsoft's May Patch Tuesday. CISA has re-added the Windows flaw CVE ...

If Windows machines fail to complete EAP-TLS authentication with ISE, with Event 5400 Authentication failed error, follow the solutions mentioned below. Note: You might get a few messages saying ...