NTLM has been a part of Windows authentication for more than three decades. It consists of security protocols originally designed to provide authentication, integrity, and confidentiality to users.

For the past few years, Microsoft has been talking about how it is slowly, but surely, phasing out NTLM in Windows installations in favor of Kerberos-based alternatives. Although some versions of the ...

Microsoft released KB5077793 to fix Azure Virtual Desktop and Windows 365 authentication failures. January 2026 security update KB5073379 caused credential prompt failures across multiple Windows ...

As organizations face an evolving threat landscape, strengthening Windows authentication is more critical than ever. The deprecation of RC4 (Rivest Cipher 4) encryption in Kerberos is a shift toward ...

QNAP warned customers to patch a critical ASP.NET Core vulnerability that also impacts the company's NetBak PC Agent, a Windows utility for backing up data to a QNAP network-attached storage (NAS) ...

CVE-2025-55315 is an HTTP request smuggling bug leading to information leaks, file content tampering, and server crashes. Microsoft’s October Patch Tuesday updates addressed a critical-severity ...

A fix introduced into Windows last month to close a weakness in Kerberos authentication is causing logon failures for some Windows Hello for Business (WHfB) users, Microsoft has warned. In theory, the ...

If your classic Outlook couldn’t authenticate with the server and is continuously asking for a password, read this post. We will show you how to fix Outlook password authentication issues using the ...

In December 2024, Microsoft Threat Intelligence observed limited activity by an unattributed threat actor using a publicly available, static ASP.NET machine key to inject malicious code and deliver ...

To implement custom Authentication and Authorization in an ASP.NET Core MVC + Web API using .NET 9.0, you'll need to follow several steps. This example will demonstrate how to create a simple custom ...

M.Sc. C.S. University of Belgrade, Serbia; MCSA – Microsoft Certified Solutions Associate (C#, ASP.NET MVC); CodeProject MVP (x2 years); C#-Corner MVP (x3 years ...