If you’re trying to connect to PlayStation Network and can’t; it’s hasn’t been hacked. According to the PlayStation.Blog, the online service is scheduled for “routine maintenance” tomorrow.
Sony communication director Patrick Seybold has detailed the maintenance for a “14 hour period” on November 14, 2011. During this time, the PlayStation Store, account management options and account registration options will be unavailable. However, Seybold adds that the online may randomly function for some online-enabled titles.