Card sharing: Only Packages of  Bulsatcom (Bulgarian) on Hellas Sat 2 at 39.0E 

Typically, a legitimate smart card is attached to a host digital television receiver, which is equipped with software to share the decrypted 64-bit "control word" key over a computer network, such as the Internet. Once a client receives this key, they can decrypt the encrypted content as though they were using their own subscription card.  More....