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The source code for BlackLotus vulnerability leaked a few days ago, almost around the same time as Microsoft rolled out the second phase hardening of its secure boot flaw via Dynamic Windows updates.

Microsoft has released a useful tool for users so that they can check for compatibility issues with memory integrity or HVCI (hypervisor-protected code integrity), a key security feature in Windows.

Microsoft is seemingly enabling VBS on Windows 10 as well, something which was limited to Windows 11 only previously. This could lead to potential performance loss as latest testing indicates.

BlackLotus, which is a bootkit, has been doing the rounds on the internet since last year. This bootkit is capable of bypassing Secure Boot, disabling BitLocker, Microsoft Defender, and more.

The Windows 11 22H2 (Sun Valley 2) RTM build 22621 has resurrected an old bug whereupon a system gets a "hardware security not supported" message even on PCs that meet the necessary requirements.

Microsoft Defender now has a new feature that will protect Windows 11, Windows 10, and Windows Server devices from malicious drivers. The feature is termed "Microsoft Vulnerable Driver Blocklist".

Windows 11 requirements can be checked using the PC Health Check app that Microsoft released. However, it seems the app is misidentifying a hyper-threaded Pentium 4 as a CPU officially supported.

Microsoft's David Weston has explained why some of the security-related features in Windows 11, like Virtualization-based Security, TPM 2.0, and more, are so crucial for the OS for now and beyond.

According to a report from 3DMark creator UL Benchmarks, Microsoft's VBS feature can incur a noticeable performance hit on Windows 11 PCs. Testing shows varying results between Beta and Dev builds.