Well shoot, that was fast! The hacking group, Lulzsec has apparently decided to call it quits, assuming the pastebin document below is indeed from the group and is not, itself, a hoax.
So that leaves me guessing three things. A) LulzSec finally decided to quit, B) they were threatened to be exposed by other hacking groups, or C) it is a hoax! Before the official let go, the hackers posted the rest of the information they stole through previous hacks online.