George Hotz, better known under his nickname "geohot", has recently appeared on Attack of the Show because he released the PlayStation 3's encryption keys, therefore any Homebrew or custom firmware can be signed. Once signed, homebrew can be natively run. It would be difficult for Sony to fix this because it would most likely require a voluntary recall and the most expensive parts would have to be replaced. In 2011, Sony, with help from law firm Kilpatrick Stockton, sued Hotz and associates of the group fail0verflow for their jailbreaking activities. Charges included violating the DMCA, CFAA, Copyright law, and California's CCDAFA, and for Breach of Contract (related to the PlayStation Network User Agreement), Tortious interference, Misappropriation, and Trespass.