Everyone has their own unique heartbeat signature. What we need is a way to hear that heartbeat, and if its not the right signature: erase/destroy/etc.
I think you're on to something there. Biometrics might be the way to go here, but is difficult in implementation.
First security in layers is the best option.
1. USB HID watcher that shuts down system when plugged in. If we use a mouse, we can exclude that. But any other HID, shutdown -r now.
2. Fingerprint scanner. It's not foolproof, but does make duplicating fingerprints a pain if you dont cooperate. And jailcells usually have concrete. No more fingerprints :)
3. Most laptops have webcams built in. I'm looking in OpenCV FaceRecognizer class to see how it works, and if it's viable for fingerprinting a user. We could also do other checks, like 3d facial recognition over multiple video frames.
4. We could also potentially use the accelerometer built in laptops. When others have made a sshd knock script, we could provide a knock script to the physical device.
5. Lock on ac power removal. Simple and effective, unless the enemy has AC separation tools.
There's a few ideas. And of course, mix in live filesystems in ram, or virtualbox funniness, and you're in business.
