Sony was knocked offline during Sunday due to an apparent DDoS, during the day Xbox Live, Battle.net and Grinding Gear Games were also disrupted.
The attacks against PSN coincided with a bomb scare involving an American Airlines flight carrying John Smedley, President of Sony Online Entertainment. Smedley had Tweeted about the DDoS attack and the firm’s efforts to combat the “large scale DDoS” before posting a message saying he was about to board the plane.
The flight was going from Dallas-Fort Worth to San Diego was diverted to Phoenix, Arizona – as an online threat reported that it was carrying explosives.
A couple of groups claimed responsibility for the DDoS attacks themselves
One, a Twitter account that has linked the attacks to the jihadist group Islamic State, posting: “Kuffar [non-believers] don’t get to play videogames until bombing of the ISIL stops.”
The other, a hacker associated with Anonymous, claimed responsibility for the DDoS on the PlayStation Network, saying they mounted it to highlight vulnerabilities in Sony’s system. The claimant criticised the other claims of responsibility and posted their own screenshots that are shown to support their report of being responsible.
Microsoft also saw disruption in service around match making whilst Battle.net saw disruption of its in game chat service for Diablo III.
“Battle.net game services have recently been subject to DDoS attacks. We worked diligently along with our ISPs [internet service providers] to improve the situation and currently are seeing more stability,” said a message posted to Blizzard’s support pages.
Grinding Gear Games reported via their Twitter account that Path of Exile was experiencing a DDoS, saying: “We’re having some server issues due to a DDoS attack. Should have it sorted out soon. Sorry for the inconvenience!”
These incidents follow reports of DDoS attacks on other multiplayer titles on Friday including Eve Online, League of Legends, RuneScape and Guild Wars 2.
At the time of writing, all services were back online.