[Cryptography] Flash paper is so last century

[Henry Baker]

Paper-based spies used to use flash paper to destroy encryption keys.

Perhaps *inkjet printed thermite* is the answer for 21st century devices?

As Crocodile Dundee might have said, "Now, *that's* a fusible link."

https://www.youtube.com/watch?v=8QNQRhBstRg

Inkjet Printed Thermite

What if the iPhone simply melted down after too many failed pin number attempts?

http://www.mirror.co.uk/news/world-news/apple-iphone-battery-explodes-store-11822101