AT&T has filed a patent for technology that would be able to detect those engaged in illegal file-sharing and place them in a “risk category”.

TorrentFreak reports that the proposed system is based on a network activity score for users.

The system “may be used to identify subscribers engaged, whether volitionally or otherwise, in high-risk network activities such as, for example, file-sharing and/or internet piracy. In this regard, mitigating services may be provided and the network and/or the subscriber may ...