The tiny ATtiny85 chip doesn’t look like the next big cyberthreat facing the world, but sneaking one on to a firewall motherboard would be bad news for security were it to happen. Learn more in an interesting Naked Security article:
In fact, thishasalready happened as part of a project by researcher Monta Elkins, designed to prove that this sort of high-end hardware hack is no longer the preserve of nation-states.
Elkins soldered the 5mm x 5mm ATtiny85 chip from an Arduino board to his test firewall’s circuit board just in front of the system’s serial port.
The link for this article located at Naked Security is no longer available.