What is the ruling on explaining a program for hacking weakly protected games and publishing it on YouTube? And is it permissible to profit from the advertisements on it?

As long as the game developers do not permit copying their games, it is impermissible to hack them, because it constitutes an infringement upon their rights, which are protected by Islamic law. Similarly, it is impermissible to explain hacking software, as it constitutes cooperation in sin and transgression, in accordance with Allah's saying: "And do not cooperate in sin and aggression."