Facebook rolls out new facial recognition system that will tag you in photos you don't know exist

Facebook is searching for your face in pictures and videos that you haven't been tagged in. The social network has revealed how it is using facial recognition to uncover more images of you, even ones you don't know about. The technology will also enable Facebook to work out if somebody is trying to impersonate you online. From today, Facebook will notify you when it thinks it has spotted you in a picture or video that nobody has tagged you in. To recognise whether or not you're in a photo or video, the site says its facial recognition system will compare images with your profile pictures and other photos and videos you're tagged in.