19-year-old Peter Stokes, a member of the Scattered Spider group, was arrested by the FBI due to a unique number embedded in his Windows operating system known as the Global Device Identifier (GDID). This identifier, assigned during Windows installation, remains unchanged and can leak user information despite the use of VPNs. The FBI identified Stokes by obtaining a history of IP addresses linked to his GDID from Microsoft, which allowed them to trace his online activities across various platforms. Microsoft tracks over a billion devices with this permanent identifier, which cannot be disabled.