From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer ...

Old UEFI shim bootloaders could be abused to bypass Secure Boot on any UEFI-based machine, regardless of the operating system ...

Microsoft's July 14 Patch Tuesday delivered something more significant than the usual batch of security fixes: a quiet rewriting of how Windows negotiates encrypted connections. The update ships ...

The images are known as shims, which were invented to extend Secure Boot to Linux devices and utility software. Using a ...