Sony has announced that PSN will be offline tomorrow night between 17:00 and 23:00 UK time. During this time players won’t be able to access the service or play games online. If you have any online plans during this time, you should log in before the maintenance begins. This way, your gameplay is expected to be unaffected. However, PSN Store, plus account registration and management options will remain inaccessible.
It seems like Sony has learnt from it’s past mistakes. Regular system checks and updates are important to keep hackers at bay from breaching the security lines.