- HBO said intrusion of this nature is "obviously disruptive"
- Some journalists got emails from hackers boasting of the breach
- HBO has contacted law enforcement agencies and cybersecurity firms
HBO, a unit of Time-Warner Inc, declined to comment on the specific programming stolen in the hack.
"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," HBO Chairman Richard Plepler wrote in a message to employees, which the company shared with reporters.
The company declined to comment on reports that unbroadcast episodes and scripts were among the data hacked, citing an "ongoing investigation" by unspecified law enforcement officials.
Entertainment Weekly reported that hackers stole 1.5 terabytes of data and had already posted online unbroadcast episodes of "Ballers" and "Room 104," along with "a script or treatment" for next week's episode of "Game of Thrones."
The show is now in its seventh season and due to wrap up next year.
(Reporting by Jonathan Allen and Piya Sinha-Roy; Editing by Cynthia Osterman)
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)