Sony is currently evaluating it’s PSN services to determine the scope of a recent security breach by unauthorized users.

SONY PSN Service Outage
http://blog.eu.playstation.com/2011/04/26/psnqriocity-service-update/
http://blog.eu.playstation.com/2011/04/27/clarifying-a-few-psn-points/

SONY PSN Blog to track future developments
http://blog.eu.playstation.com/

SONY PSN Service Outage FAQ
http://faq.en.playstation.com/cgi-bin/scee_gb.cfg/php/enduser/std_adp.php?locale=en_GB&p_faqid=5593

QUOTE: Sony takes information protection very seriously and will continue to work to ensure that additional measures are taken to protect personally identifiable information. Providing quality and secure entertainment services to our customers is our utmost priority. Please check www.eu.playstation.com/psnoutage should you have any additional questions.