https://www.bleepingcomputer.com/news/security/new-thunderbolt-security-flaws-affect-systems-shipped-before-2019/

Attackers who gain physical access to Windows, Linux, or macOS devices can access and steal data from their hard drives by exploiting 7 vulnerabilities found in Intel's Thunderbolt hardware interface and collectively known as Thunderspy.

Thunderbolt is a hardware interface designed by Intel and Apple in collaboration to help connect external peripherals that need high-speed connections (RAID arrays, network interface, video capture devices, and others) to a computer.