PSN Is Back ! - UPDATED
UPDATE It's down again for some: We're aware that some users are experiencing sign-in issues on PS4 and PS3; engineers are investigating the cause. — Ask PlayStation (@AskPlayStation) December 27, 2014 PSN is now back online, enjoy your Christmas games! Update: PS4, PS3, and Vita network services are gradually coming back online - thanks for your patience — Ask PlayStation (@AskPlayStation) December 27, 2014