HBO regains control of hacked social media accounts

HBO says it has regained control of its social media accounts after the latest security breach to hit the entertainment company.

Hacking of Twitter accounts, including ones for Game of Thrones and John Oliver's show 'rectified quickly'

HBO has been dealing with episode leaks online for Season 7 of Game of Thrones and in the latest headache the group OurMine briefly took over several HBO's Twitter accounts, including one for the international blockbuster series. In this image, Lena Headey appears in a scene from Game of Thrones. (HBO/Associated Press)

HBO says it has regained control of its social media accounts after the latest security breach to hit the entertainment company.

The hacking group OurMine on Wednesday night took over several of HBO's Twitter accounts, including ones for Game of Thrones and John Oliver's show. The group posted that "we are just testing your security" and asked HBO to contact it for an upgrade.

HBO said in a statement Thursday that "the infringement on our social media accounts was recognized and rectified quickly." It declined further comment.

OurMine has a history of similar hacks showing companies' security vulnerabilities.

It caused far less damage and appeared unrelated to another group of hackers who broke into HBO's computer network and have been doling out stolen information and unaired episodes for several weeks.