NEW YORK — 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. Related ArticlesAugust 17, 2017 SBA head sees businesses held back by lack of loans, workers August 17, 2017 Tradesmen, outdoor enthusiasts rejoice: Duluth Trading Co.