A group of hackers have claimed to take down the PlayStation Network with the use of a DDoS attack. The hacker group Lizard Square claimed responsibility. No personal details were leaked in the attack. The outage lasted for around 10 hours after the attack started. The threat also included a security threat against the plane that Sony Online Entertainment President John Smedley was on. The plane was diverted to Phoenix and had its cargo inspected. The FBI is now investigating the incident.