DC17 Badge Hack: Anti-Surveillance System

From the DEFCON 17 Badge Hacking Contest. Anti-Surveillance System by Zoz. 1st place winner in the DC17 Badge Hacking Contest. This entry comprised two phases: 1) Defeating automated facial recognition systems by generating alternating colors and patterns of light (based on research demonstrated at the 2006 ACE, Advances in Computer Entertainment) at a frequency slightly less than 60Hz. 2) Defeating PIR motion sensors ala the movie Sneakers using the DEFCON 16 Badge. This badge had a ...