Sony just explained (updated its site) that the outage on Playstation was caused by ‘external intrusion’. This is the blog content:
An external intrusion on our system has affected our PlayStation Network and Qriocity services. In order to conduct a thorough investigation and to verify the smooth and secure operation of our network services going forward, we turned off PlayStation Network & Qriocity services on the evening of Wednesday, April 20th. Providing quality entertainment services to our customers and partners is our utmost priority. We are doing all we can to resolve this situation quickly, and we once again thank you for your patience. We will continue to update you promptly as we have additional information to share.
Thank you very much for your patience while we work to resolve this matter.
During this time you may:
- Not be able to access the PlayStation®Store
- Have difficulty signing in to the PlayStation®Network
- Not be able to play online games
- See a maintenance page when attempting to access the PlayStation®Network
Note: When you log into the PlayStation Network, a message may appear which states, “the PlayStation Network has been suspended”. This does not mean that your account has been suspended; it simply means the PlayStation Network has been taken offline. Please wait until the maintenance window has passed before attempting to connect to the PlayStation Network again. We apologize for any inconvenience this may cause.