What letter do pirate's hate the most? Dear Charter Internet Customer: Charter Communications (""Charter"") has been notified by a copyright owner, or its authorized agent, that your Internet account may have been involved in the exchange of unauthorized copies of copyrighted material (e.g., music, movies, or software). We are attaching a copy of the Digital Millennium Copyright Act (DMCA) notice that Charter received from the copyright holder which includes the specific allegation.