LulzSec has posted on Twitter to claim it is not responsible for going after the census data, but says it applauds whoever may have done so.
It commented: "Anyone in the world can copy and paste The Lulz Boat ASCII art and general lighthearted theme. Smarten up, check the feed first.
"But hey, if someone out there hacked the UK government in the name of #AntiSec, well done sirs!"
Similarly, it seems to suggest that the recent arrest of a UK man - named locally as Ryan Cleary - for hacking does not affect it either: "Seems the glorious leader of LulzSec got arrested, it's all over now... wait... we're all still here! Which poor bastard did they take down?"
Nevertheless, LulzSec says it is about to reveal some new 'payloads' of material, so it is sure to generate more headlines very soon. Watch this space...