Microsoft Can Track Users Via a Windows Device ID

A criminal complaint against alleged Scattered Spider member Peter Stokes revealed that Microsoft can associate Windows activity with a persistent "Global Device ID," which investigators used to link his PC to online activity connected to a hack. While unique device IDs are common, the case has raised privacy concerns because the identifier can apparently persist across updates, has no simple opt-out, and may allow Microsoft to connect a Windows installation to activity on third-party services.