In addition to rolling out patches to address two zero-days affecting SQL Server and .NET, Microsoft introduced Common Log File System hardening with signature verification.

The January 2026 updates will begin the phaseout of RC4 encryption in the Kerberos protocol for Windows Server. The trigger is a security flaw that allows attackers to request Kerberos service tickets ...

In the Windows Release Health Message Center, Microsoft explains that the software fix for a security vulnerability in Kerberos initiates the hardening of Kerberos with RC4. The vulnerability itself ...

Pass The test ran successfully. Xfail The test was expected to fail and it failed. It must be properly justified and reported in an issue. Skip The test was not run. It must be properly justified and ...

The Linux kernel development cycle continues with the release of Linux 6.19-rc4, the fourth release candidate in the lead-up to the final 6.19 stable kernel. As with previous RC builds, this release ...

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Although RC4 encryption should already be a thing of the past, it is still used sporadically today. Microsoft has now announced that it will remove Rivest Cipher 4 from Kerberos. This is intended to ...

Microsoft is officially moving to shut the door on RC4 - a legacy cryptographic cipher that has quietly persisted inside Windows authentication environments for decades - and forcing organizations to ...

About time: Microsoft introduced support for the RC4 stream cipher in Windows 2000 as the default authentication algorithm for the Active Directory services. The system has been insecure for even ...

Microsoft is killing off an obsolete and vulnerable encryption cipher that Windows has supported by default for 26 years following more than a decade of devastating hacks that exploited it and ...