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 ...

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 ...

Posts from this topic will be added to your daily email digest and your homepage feed. Security researchers have found flaws in the way laptop manufacturers are implementing fingerprint authentication ...

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 ...

Biometric authentication is a key piece of the tech industry's plans to make the world password-less. But a new method for duping Microsoft's Windows Hello facial-recognition system shows that a ...

Microsoft this week indicated that it plans to eliminate the need to use the New Technology LAN Manager (NTLM) protocol in Windows 11, with Kerberos taking its place. NTLM use has long been a ...

Increasingly, whether due to regulatory requirements or a basic recognition that static passwords just don’t provide adequate security, organizations are ...

Attackers can steal user credentials by enabling credential caching in the Windows authentication protocol WDigest. Here's how to stop them. Once attackers get into a system, they often want to ...