This from the Playstation Blog
We sincerely regret that PlayStation Network and Qriocity services have been suspended, and we are working around the clock to bring them both back online. Our efforts to resolve this matter involve re-building our system to further strengthen our network infrastructure. Though this task is time-consuming, we decided it was worth the time necessary to provide the system with additional security.
We thank you for your patience to date and ask for a little more while we move towards completion of this project. We will continue to give you updates as they become available.
The troubles for the PSN continue after several outages due to the “anonymous” hacker attacks and now Amazon’s cloud server issues they have decided to rebuild the system from the ground up adding better security. Hopefully this secures them for the long run as they have definitely had their issues over the past months.