> ABS keycaps retain the thermal trace of users presses for a longer period of time, making them more vulnerable to thermal attacks, with a 52% average attack accuracy compared to 14% for keyboards with PBT keycaps.<p>“I couldn’t help but notice you were looking at my keyboard. It was the key caps, wasn’t it.<p>(You can touch them if you want. Your hands are clean, right?)<p>Sure they cost a little bit extra, roughly as much as the keyboard, but they aren’t for looks. No, these are going to protect me. From spies wielding thermal cameras.”<p>Touch typing also helps. As do walls.