I'd like to ellicit your suggestions on how to purge sensitive/personal files from a PC/laptop automatically in the event it's stolen or otherwise being accessed by an unauthorized user.

My first thought is to simply put a home-grown app in the Startup folder that checks the login username
and if it's not the expected one just delete selected folders, empty the wastebasket, then start copying a large file or folder as xxx001, xxx002, etc onto the disk until it's totally flooded, i.e. overwritten with junk.

I know there are many holes in this, but for 99% of cases it might be adequate. I don't work for the CIA, Enron or the DNC and the last time someone tried to steal my PC they weren't even bright enough to disconnect all the cables and gave up. So, if anyone has any "absolutely foolproof" ideas, that's wonderful. But, I'm happy with just fool-tolerant.

Thanks, DaveBo