What it is
Microsoft Security Copilot is Microsoft’s AI-powered security assistant. In the public vulnerability-discovery record, its clearest entry is the Microsoft Threat Intelligence bootloader campaign disclosed in March 2025.
What is verified
Microsoft’s primary write-up says Security Copilot helped expedite discovery, issue refinement, and variant analysis across GRUB2, U-Boot, and Barebox. The research produced 20 CVEs and coordinated updates with the maintainers.
What is not counted
The bootloader entry is AI-assisted, not fully autonomous. Microsoft describes a combined workflow involving Security Copilot, CodeQL, AFL++, manual review, and maintainer validation.