Thermal imaging has been a subject that not many people get the opportunity to research, without an exceedingly high number of dollars on the table. This pet project of mine began in 2010 when I asked FLIR for a demo unit to do a series of tests in an effort to see how infrared could be used in the world of information security. Their PR people replied to me saying that they didn’t think a FLIR device could be used to read heat signatures from a computer because they weren’t sensitive enough. This year I got my hands on a FLIR E4, and hacked it to have 4x the resolution. Boy was that PR guy wrong.