The war between internet service providers and pirates seems to have gotten even more complex, with carriers blocking the unblocking methods that target its blocks.

Nearly all of the most popular torrent sites, including Kickass Torrents and Isohunt, are now banned by UK providers, but until recently these blocks could be fairly easily circumvented by proxies.

Scores of uTorrent users are now reporting being hit with 'Torrent is not valid bencoding' error messages however, which appear when they try and open a file in uTorrent or BitTorent.

It has been posited that ISPs are corrupting the torrents on purpose, as the proxy only works for access to sites in browsers, and won't cover the launching of the torrent.