This therefore meant that only TPS receivers could receive the new AES key, and not the insecure TPS subscription cards. These AES keys were originally updated once weekly, however after this inconvenienced unauthorised viewers little, a second TPS crypt system was introduced, by which keys are changed every 12 minutes, with keys being sent over TPS's internal Open TV system. Despite being compromised also, the TPS Crypt system has been further modified to use Advanced Encryption System (AES) keys. Revamps mobile app with new features, launches new advertising campaign with Javed Jaffrey HT Media Launches Mediahack.in Investment in Round One. Free Card Sharing, Free CCCam Server, Satellite Keys, 2017, Biss Keys. There are two modifications of Viaccess PC2.3 in use.
PC2.3 and PC2.4 are known to be ineffective, and many can be 'patched' to decrypt Viaccess signals without payment, however PC2.5 and PC2.6 are secure, with PC2.5 remaining secure two years after its first commercial deployment. Viaccess was developed as the digital version of the system used with the hybrid system, The first version is sometimes referred to as Viaccess 1, and the latter three, although different, as Viaccess 2. There are six versions in use today, Viaccess PC2.3, Viaccess PC2.4, Viaccess PC2.5, Viaccess PC2.6, Viaccess PC3.0, Viaccess PC4.0, Viaccess PC5.0, and Viaccess PC6.0.
