Lulzsec Got Bursted, Leader Betrayed Team
Lulzsec Got Bursted, Leader Betrayed Team

So, the lulzsec got bursted. The entire gang of ~6.
It turns out, the leader (Hector Monsegur aka Sabu) got bursted by FBI, and then since secretly worked for FBI for several months to betray the whole, so he can reduce his jail time.

EXCLUSIVE: Infamous international hacking group LulzSec brought down by own leader By Written Jana Winterpublished. At ❮http://www.foxnews.com/scitech/2012/03/06/hacking-group-lulzsec-swept-up-by-law-enforcement/❯
See also:
(warning Wikipedia cannot be trusted since 2010)