LulzSec Reborn, a splinter group of the defunct LulzSec, is claiming responsibility for leaking data from 10,000 users of a Twitter-based app called TweetGif.

The app, which let users share GIFs, required users to share information including their real names, passwords, bios, locations and secret tokens, all of which LulzSec Reborn has made public. The group, which last month leaked account information from 171,000 members of the military via millitarysingles.com, has not given a reason for its latest hack. Reps from TweetGif could not be reached for comment at press time.

The emergence of LulzSec Reborn comes after police in the U.S., Great Britain and Ireland arrested five of the top LulzSec members in March.

LulzSec has targeted a wide variety of organizations, either for ideological reasons or just “for the lulz.” In other words, for the sake of amusement and thrill of hacking. It has gone after law enforcement agencies, AT&T, Sony, a British newspaper and the U.S. Navy. The group claimed to have "retired" in late June of last year, although a LulzSec-organized hack against The Sun newspaper in the U.K. occurred a month later.

The LulzSec group is considered to be indirectly connected with Anonymous, another international group of hackers and “hacktivists.”

Image courtesy of iStockphoto, PashaIgnatov