But really, how do you know? The situation I was talking about was a guy who bought a premade computer that had a used HDD in it (it was a "brand new PC" and the HDD had been reformatted). He then got ahold of the owner and that person had sent it in for destruction but it apparently just got wiped and put in a brand new HP (I think it was).
Makes me think it could happen with other hardware as well though.
Seems I don't know for sure. I guess it's a good sign that the cold wallet still has coins in it...
Is there an easy way to disable wireless on a laptop? In a way that malware can't re-enable? Most of the time there's only encrypted wifi around when I use it, but it would be better not to rely on that.