First it was the colleges and universities, now the RIAA and MPAA are going after corporations in their anti-file sharing campaign:

Movie studios and record labels are taking their case against illegal Internet downloads directly to corporations, where much of the offending action allegedly occurs.

The Recording Industry Association of America and the Motion Picture Association of America are sending a six-page brochure this week to Fortune 1000 corporations with suggested policies — including a sample memo to workers warning them against using company computers to download songs and movies.

The brochure also carries a clear threat: Stop workers from stealing copyrighted materials or be sued.

The brochure lists a variety of risks companies face from illegal downloads — infected computer systems from online viruses, exposed private files on peer-to-peer file-sharing networks such as Kazaa, and breached corporate firewalls designed to protect computer networks.

It also lists legal risks, including injunctions, damages, costs and possible criminal sanctions "against your organization or its directors." [AP]