It’s been a long time coming, but several days ago a man suspected of being an MGM hacker was arrested while trying to board a plane in Europe. You probably recall that both MGM and Caesars properties in Las Vegas were the victims of a coordinated cyber attack in September of last year. Now, a British citizen is in custody. The attack ended up costing millions of dollars for both companies while causing widespread chaos at the effected resorts. It also triggered an investigation by the Federal Trade Commission,which led to a subsequent lawsuit from MGM Resorts against the FTC…