Update: PSN is back online. Also, the FBI is now investigating Lizard Squad's bomb threat.
Original article: PS4, PS3, and PS Vita woke up this morning to find that PlayStation Network is down. The service, along with several PC multiplayer games, has been reportedly taken down by hackers.
Sony acknowledged the PSN issue this morning. They haven't provided an estimate for when the problems will be fixed:
Sony Online Entertainment, the PC gaming wing of the company, suffered attacks as well. This made SOE games like PlanetSide 2 unplayable. President John Smedley says that service is being restored gradually.
To add insult to injury, Lizard Squad decided to call in a bomb threat for Smedley's flight home:
League of Legends was brought down by Lizard Squad as well. Developer Riot Games admitted in a forum post that DDOS problems have been happening for several weeks, though. They seem resigned to the fact that this is a regular hazard for any multiplayer game.
"While we can’t share the details of the work we are doing internally to combat this (since it would give the attackers information to circumvent it), we want you to know that we are tackling this from many different angles. This includes working with our datacenter and internet service provider partners, as well as developing tools and services internally to make our service more robust against these types of attacks. Defending against DDOS attacks is an arms race that we will always be engaged in, and we are committed to reducing the pain you all feel as swiftly as possible when the service is being impacted by malicious attacks."