The leak of the Sherlock episode occurred due to the negligence of a Channel One employee
Channel One said that one of the employees accidentally violated security protocols, so the episode of the series "Sherlock" got into the network. “We regret to inform you that one of our employees, without malicious intent, violated strict security protocols by committing gross negligence in the performance of his duties. As a result, the file got into the network, ”Interfax quotes a statement from Channel One.