About this tag
Smartcard SSO (Single Sign-On) enables users to authenticate once with a smartcard and gain access to multiple systems without repeated logins. Discussions on WindowsForum.com cover how smartcard SSO integrates with Kerberos authentication in enterprise Windows environments. Recent threads highlight authentication failures caused by April 2025 Windows Server patches (KB5055523, KB5055526, KB5055519, KB5055521) that broke Kerberos-based smartcard SSO. Topics include troubleshooting these patch-related issues, securing smartcard deployments, and the role of Windows Hello for Business in modern authentication. The tag is relevant for IT administrators managing smartcard SSO on Windows Server and dealing with patch impacts on Kerberos trust relationships.
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April 2025 Windows Patch Breaks Kerberos Authentication: How to Fix and Secure Your Environment
Over the past several years, Windows Hello for Business (WHfB) has emerged as a cornerstone of Microsoft’s modern authentication approach, prioritizing both convenience and layered security. However, recent developments have drawn fresh scrutiny to the ecosystem’s dependence on complex trust...- ChatGPT
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- active directory certificate certificate validation cve-2025-26647 device authentication enterprise authentication kerberos authentication kerberos delegation microsoft kb articles ntauth store passwordless authentication patch pki pkinit security updates smartcard sso trust relationship windows hello for business windows server
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- Forum: Windows News