Destiny and Call of Duty Ghosts servers have gone offline with network errors showing on all platforms with @LizardSquad claiming responsibility. Bungie took to Twitter to acknowledge the issue and that they were working to resolve it and have been providing regular updates.
CoD Ghosts & Destiny #offline
— Lizard Squad (@LizardSquad) September 29, 2014
The group also appear to have targetted EA servers with the ominous message:
The group have not provided reasons behind the attacks but it is believed the same group were previously responsible for an attack on PSN itself.