Kim Dotcom and business partner Mathias Ortmann say Megaupload’s latest incarnation 'Mega' will be ultra secure and almost immune to shutdown as well as deflecting copyright liability to its users completely.

Before users upload their files to Mega they will be encrypted using the AES algorithm. Users will then be provided with a unique decryption key giving them sole responsibility for who can have future use of the file.

Mega will have no knowledge of any encrypted file’s contents at ...