Looks like the SOE downtime was more of a precaution, they are stating
no customer data was compromised on their side.
One strange part from the Q&A yesterday:
Moving forward, we are initiating several measures that will significantly enhance all aspects of PlayStation Network’s security and your personal data, including moving our network infrastructure and data center to a new, more secure location, which is already underway. We will provide additional information on these measures shortly.
Odd that they feel the need to physically relocate where the network is hosted.