Sony said only that the network was "experiencing issues" and its status page showed that the problems were affecting all of its major services.
PSN suffered some problems over the Christmas period, including issues playing online on Christmas Day. Sony's "Network Service Status" page only showed that the problems were affecting all of the company's platforms, including the Play Station 3 and 4 and web services.
" The threat is an allusion to "The Interview," although they did not mention it by name.
The group also leaked around 2.7 gigabytes of new files containing emails from Sony Pictures Entertainment co-chairman Amy Pascal and Sony Pictures Television president Stephen Mosko.
Two men claiming to be from the group told BBC Radio 5 Live they had carried out the attack which disrupted Christmas for families around the world to highlight weaknesses in cyber security.
Gay, straight, hipster, geek – forget about Hollywood hunks and hotties.
Although the online store for games, films and TV shows seems to be back up and running once again, visitors to the site were brought to a halt on Sunday night with a message reading, "Page Not Found! It's the Internet's fault." Gamers have also reported difficulties while trying to play online games.
Sony says only, "We are currently investigating the root cause for the issue."An anonymous individual or group calling itself Lizard Squad has claimed responsibility with a tweet late on Sunday reading "PSN Login #offline #Lizard Squad". The information included customer passwords, Sony employees' Social Security numbers, and contracts with celebrities.
As evidenced by the wonderfully diverse catalog of games on the PSN, Glazyrin revels in the freedom PSN gives developers.
"The PSN platform has very few limitations, and it compares favorably to its rivals." Sony's support of Creat has been "great" according to Glazyrin, and the ability to access tools like Havok for free makes it possible to "implement real physics – even in games with a moderate budget."While Creat is finding success on PSN, the developer is looking towards the future with at least two more PSN games.