Leaving Your Mark: Thermal Signatures of Passwords Left on Keyboards
We leave evidence of where we’ve been and what we’ve done all over the place. From footprints to DNA, we seldom act without a trace. Our keyboards are no exception. I’m not talking just about fingerprints, DNA, food particles, or skin oils. I’m talking about heat. I saw a movie or maybe a television show […]
Is Heat-based Data Communication a New Cyber Security Threat?
I am fascinated by techniques to indirectly capture data from computers. In college we had software to play sounds on a radio placed near a processor or printer. The signals from the device generated radio-frequency data one could hear on a radio. Clever programmers even made music from those sounds. Some people still do this […]