It was a spare on a shelf at my office in a co working space. Password was not set up so a low level worker could use it if I needed them to grab it. Worked out well as the thief used it and thought nothing of securing it.

It was a cheap wintel computer that could have had the os reinstalled if the operating system had been locked.

The thief had opportunity and access to the coworking space.

Thankfully they didn’t realize backblaze was on it.

Probably just extracted the credentials from an unencrypted drive.

Seems a bit more savvy than I'd expect a typical laptop-snatcher would be, but with the possibility of finding a cryptocurrency wallet these days, maybe more thieves go to the trouble (or sell them to people who would).