Hackers Rebel Against Spy Cams
When the Austrian government passed a law this year allowing police to install closed-circuit surveillance cameras in public spaces without a court order, the Austrian civil liberties group Quintessenz vowed to watch the watchers.
Members of the organization worked out a way to intercept the camera images with an inexpensive, 1-GHz satellite receiver. The signal could then be descrambled using hardware designed to enhance copy-protected video as it's transferred from DVD to VHS tape.
The Quintessenz activists then began figuring out how to blind the cameras with balloons, lasers and infrared devices.
And, just for fun, the group created an anonymous surveillance system that uses face-recognition software to place a black stripe over the eyes of people whose images are recorded.
