The news says they clone another PS4 and update the bios/chip of your PS4 to the cloned one.... so every game the main PS4 have can run in the cloned PS4.
That way the store selling the hack have a PS4 with all games bought and just sells the clones PS4 (or make your PS4 a clone) with the games you choose installed in the HDD.
That is what I understand.
My question is if Sony detect the original PS4 and ban it? All the others cloned PS4s will works?