A group of hackers has set its sights on PlayStation, and it's serious. They call themselves LizardSquad [1], a group that previously claimed responsibility for taking PlayStation Network offline [2]. Hackers hit Xbox and Sony on Christmas Day with attacks that took down both services [3]. On Friday, Xbox Live was up and running, while PlayStation Network continued to suffer network issues.

In August, the same group targeted a flight with Sony Online Entertainment executive John Smedley on board. The group tweeted that the plane had explosives planted [4] and included a photo of an eticket for the flight [5]. The executive then received direct tweets with the hashtag #PrayForFlight362 and a video of a plane crashing into the World Trade Center from Sept. 11. American Airlines took action immediately and diverted the flight from San Diego to Phoenix to perform a full search of the plane and its passengers.

Yes. My plane was diverted. Not going to discuss more than that. Justice will find these guys.

— John Smedley (@j_smedley) August 24, 2014 [6]

Who are these guys, exactly? Tweets align the group with the hacking network Anonymous [7] and the Islamic militant group ISIS [8]. Their intention has not been made clear.