[LaputanMachine]

There would still be a temperature difference for some time after entering a PIN until the keys used are fully cooled. So this method might not fully mitigate the attack.

A better solution could be to heat the keys to about the same temperature as a human's finger tips, so that no heat is being transferred while entering a PIN.

[jaclaz]

Exactly, easier and much more effective than the mitigation suggested by the scientists:

>One potential risk-reduction pathway could be to make it illegal to sell thermal cameras without some kind of enhanced security included in their software.

[Arrath]

I'm curious what kind of software solution there could be to this?

Some from of pattern matcher in the camera obscuring the video output when it determines its observing a number pad?