LAS VEGAS--Facebook's online privacy woes are well-known. But here's an offline one: its massive database of profile photos can be used to identify you as you're walking down the street.
A Carnegie Mellon University researcher today described how he assembled a database of about 25,000 photographs taken from students' Facebook profiles. Then he set up a desk in one of the campus buildings and asked willing volunteers to peer into Webcams.
The results: facial recognition software put a name to the face of 31 percent of the students after, on average, less than three seconds of … Read more