Yes, you are reading it correctly and we aren’t joking about it. The next episode of Game of Thrones season 7, which is going to be the penultimate episode of season 7 has been leaked online and no, the hackers haven’t played any role in leaking the episode. The episode got leaked because HBO Spain happened to air the episode by accident!
People are saying that leaked it accidentally, which is highly unlikely as we all know that the hackers have already demanded money in order to not leak the next episodes.