I've heard of a program which will ask for a password before
windows boots up. If after three attempts the user fails to enter
the correct password the harddrive is erased.
It is used by companies to protect data in the event of computer
or hard disk theft.
Anyone heard of it?
Not exactly what you are looking for but you might be able to make
use of it any way-
Dead Man's Switch
This application was sparked by an Ars OpenForum thread about what
would happen if one of us were to shuffle off to that Great
Motherboard in the Sky. Software which would act as a proverbial
"Dead Man's Switch" came up, which is basically a system that, if not
reset by a given time, will automatically carry out a series of
tasks, such as posting messages to websites like Ars, sending e-mails
to loved ones (or hated ones), and encrypting or destroying sensitive
files (*cough* pr0n *cough*). Interest was expressed for the creation
of such software, and well, here it is.
http://daisyman.arsware.org/dms/
But some who have used the program advise caution.
"I went on vacation, and forgot all about the switch," said Kenny
LaGuardia, a Web designer from Los Angeles. "When I returned home,
the program had posted, 'So I guess I'm dead' messages to all the
newslists I subscribe to, and destroyed all my adult entertainment
files."