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 officially deprecated NTLM authentication on Windows and Windows servers, stating that developers should transition to Kerberos or Negotiation authentication to prevent problems in the ...

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 ...

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 ...

Authentication issues in Windows Server after April updates Logon failures for WHfB and Device Public Key Authentication Workaround available, Microsoft working on permanent fix for impacted Windows ...

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

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 ...

The default settings for Windows 10 strongly encourage you to sign in with a Microsoft account. Although it's easy enough to switch to a local account, there are good reasons for connecting that ...

Microsoft Teams is a unified communication and collaboration platform that combines persistent workplace chat, video meetings, file storage, and application integration. If when you try sign in to ...

is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. SYSS tested Microsoft’s own Surface Pro 4 device running last year’s Windows 10 ...