The HBO hack may have been worse than the initial leaks of a few unaired TV show episodes suggested. A security company hired by HBO to scrub search results for the hacked files from search engines has told Google that the hackers stole “thousands of Home Box Office (HBO) internal company documents.”

The disclosure came as part of a DMCA take-down notice sent to Google Tuesday to force the search engine to take down links to the leaked files. The take-down notice also detailed that the hackers did away with “masses of copyrighted items including documents, images, videos and sound.”

The company in question, IP Echelon, is frequently being used by HBO to remove links to infringing material from Google. An HBO spokesperson declined to comment on the take-down notice and the nature of any files stolen by the hackers when contacted by Variety Wednesday “due to an ongoing investigation.”

Word of HBO getting hacked first broke Monday morning, when the hackers approached media outlets with the news that they had broken into HBO’s networks and released episodes of “Ballers,” “Insecure,” and “Room 104” as well as the script for an upcoming episode of “Game of Thrones.”