"We have been performing regular, thorough testing of the implemented security enhancements. After investigating further, there is no indication that the claim by [LulzSec] is accurate at the moment," said a Sony spokesperson in an emailed statement on June 02, 2011 12:41:13 AM ET, referring to claims by LulzSec on May 31 that it was successfully hacking Sony.

LulzSec (Lulz Security) is a hacker group who gained notoriety for hacking PBS and publishing a bogus story of Tupac being alive. Previously, it also hacked Fox.com, the FOX15 Twitter account, and Sony's music website in Japan.

A few days ago, LulzSec claimed to be successfully hacking Sony. It posted the following on its Twitter account (@LulzSec):

"Hey @Sony, you know we're making off with a bunch of your internal stuff right now and you haven't even noticed? Slow and steady, guys." – May 31

"#Sownage (Sony + Ownage) Phase 1 will begin within the next day. We may have a pre-game show for you folks though. Stay tuned." – May 29

On Thursday, LulzSec still maintains that it has hacked Sony. It stated the following:

"We're currently grouping together the things we've taken from @Sony and are arranging them in a way that everyone will easily understand."

"Everything we have will be published in multiple ways to ensure maximum embarrassment and exposure for @Sony and their security flaws. :D"

"Hold your F5s for now, we're getting all this juice in one place. Blame @Sony for storing their data in a stupid fashion. Silly Sony!"

"Everything is in one place. We will be announcing an official release time soon."

READ: Sony hacked, tons of data stolen, claims LulzSec