Re: Wonder if there would be a market for
There's not only a market, there's a company that is actually manufacturing storage devices with built-in hardware self-destruct. It was reported here in the Register some months back. Sorry, can't remember the details. ISTR they were rather picky about who they'd sell to, and the prices were eye-watering.
Suspect I could do much the same with an SSD, a large capacitor charged to 240V, and some homebrew electronics, if I had any reason to want to do so.