> plug it into the computer’s power strip, then unplug the power strip from the wall
For additional opsec, plug your computer directly into wall socket? That is new to me but interesting nonetheless.
For additional opsec, plug your computer directly into wall socket? That is new to me but interesting nonetheless.
Then you just supply A/C power of your own before unplugging fully from the wall outlet.
I think there are some low-tech solutions that work as well, but I don't know them off-hand. If you wanted to go that route, you should check out the Harvey's Casino Bomb. That guy had layers upon layers of triggers that would probably work just as well for preventing tampering with a PC.
That would keep the meddling to low-voltage stuff that won't kill someone or start a house fire if it doesn't work correctly. Messing with mains voltage seems dangerous and unnecessary since most of the PC runs on low voltage.