Developers of the AACS technology designed to prevent the pirating of high-definition DVDs have acknowledged that hackers have been able to bypass the protection system. On its website, the consortium of companies backing the AACS technology confirmed that the decoding "keys" to some 35 high-definition movies, including King Kong and World Trade Center had been posted on the Internet and that the movies themselves have been showing up on file-swapping networks. The AACS group said that it is exploring "technical and legal measures to deal with the attack."