Autoblock - is a fact, but since the new version came out the hack became very obvious to detect since it was poorly done. I don't believe anyone dares to use it atm. But, there are really great people at manual blocking, dont jump into conclusions.
Autoaim - There is one, never seen it apart from a youtube video. Its really hard to get and find, don't bother much with that, people using might be only 0,01%.
In the end, every hack in this game is beatable.