HBO has joined the ranks of Hollywood entertainment companies to suffer a major cyber attack.
EW has learned that upcoming episodes of a couple series and at least one alleged script or treatment have been put online by hackers who breached the company's systems — with more threatened to be coming soon.
Hackers claimed to have obtained 1.5 terabytes of data from the company. So far, an upcoming episode of Ballers and Room 104 have apparently been put online. There is also written material that's allegedly from next week's fourth episode of Game of Thrones.
HBO is not commenting on what content might have been stolen, confirming specific titles or the amount of data accessed. HBO chairman and CEO Richard Plepler sent an email on Tuesday to HBO employees alerting them of the breach.
"As most of you have probably heard by now, there has been a cyber incident directed at the company which has resulted in some stolen proprietary information, including some of our programming.
"Any intrusion of this nature is obviously disruptive, unsettling, and disturbing for all of us. I can assure you that senior leadership and our extraordinary technology team, along with outside experts, are working round the clock to protect our collective interests.
It's not clear if the hackers actually have what would be the crown jewel target for an HBO cyber breach - upcoming episodes of the company's biggest hit, Game of Thrones. So far, no GoT episodes have leaked.
For years, HBO has fought a cyber-battle to keep Game of Thrones storylines secret and the show's content from being illegally distributed — particularly before episodes air.
In season 5, the first four episodes leaked online before the show's season premiere after review DVDs that were sent to the press and industry insiders. HBO has since halted the practice of sending any episodes in advance.
That same year, some clips leaked ahead of time from overseas HBO distributors, and even images of Jon Snow's death found their way online before the finale aired.