Microsoft has fixed a known issue causing authentication problems when Credential Guard is enabled on systems using the Kerberos PKINIT pre-auth security protocol. According to Redmond, these ...

A critical zero-day vulnerability in Windows servers running the Kerberos authentication system, first disclosed in May, has now been patched by Microsoft, but must be given high priority by admins ...

Microsoft says the April 2025 security updates are causing authentication issues on some Windows Server 2025 domain controllers. The list of impacted platforms includes Windows Server 2016, Windows ...

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 ...

The Kerberos authentication protocol is the default authentication protocol of Windows Server 2003. This section examines how the protocol works by breaking down the complexity of the protocol into ...

Authentication sits at the heart of enterprise security, making passwords and the authentication mechanisms that use them, prime targets for cybercriminals. For more than 90% of organizations that use ...