Anti-removal/theft protection method - any ideas?

Some arcade videogame hardware stored ROM decryption keys in battery-backed memory. When the keys were lost, the board was essentially dead. If you place the battery in the mounting so that the connection is broken if removed your security should be as strong as the encryption you've used. You will however need to design in a way to initialize the keys after installation and regularly service it as the battery loses its charge. If there is a chance the keys could be dumped in-place you have to protect yourself against that, too. See .

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Reply to
ammonton
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Interesting that no one thought about the pin attached to the other end of a hand grenade... Always works for me. Never had any grenades stolen! ;-)

Seriously, what you need is a pin activated switch on the mounting side. When first assembled, mounted and activated, the pin is intact and the switch is open. If the device is removed the pin comes out and activates the switch, setting off the de-activation sequence. Assuming you program it in ROM, no amount of fiddling with the switch will allow it to be reactivated without being returned to the manufacturer.

Just like the grenade- you can only use it once!

Reply to
Mike H

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