https://www.cnbc.com/2017/08/16/another-game-of-thrones-episode-has-leaked-online.html

An unaired episode of Game of Thrones has appeared on the internet this morning. Episode six, due to be aired on Sunday, appeared first on file sharing sites and a Reddit post. Reddit users spotted that the episode was accidentally aired by HBO Nordic in Spain for an hour before it was removed. The episode six appearance follows a similar leak of episode four around two weeks ago.

The previous leak was related to a distribution partner in India, and HBO has confirmed to The Verge that the company accidentally posted it on its own platforms. "We have learned that the upcoming episode of Game of Thrones was accidentally posted for a brief time on the HBO Nordic and HBO España platforms," says a HBO spokesperson. "The error appears to have originated with a third-party vendor and the episode was removed as soon as it was recognized. This is not connected to the recent cyber incident at HBO in the US."