Sweden's Goteborg Post reported on June 28th that the IT system of Maersk Group of Goteborg port container terminal operator was attacked by Petya network virus on 27, and the port's normal operation was affected. It is reported that the virus is destructive, for a wide range of attacks on the global government and enterprise organization, Maersk Group is the serious attacks on the company. At the beginning of the 29 day, the operation of Goteborg port was gradually restored to normal.