A DDoS attack is fairly easy with the right software. But the group has also hacked into sites ranging from Sony Pictures to porn sites, often publishing the passwords and other personal information they find.  Instead of hiding in the dark shadows of the Internet, they are front-and-center on an active Twitter feed fueled with taunts, crude jokes and hints about future attacks.  For those who don't speak the language, "lulz" is an offshoot of "LOL," webspeak for laughing out loud. Think of it as a substitute for "just for a laugh."  "Lulz Security, where the entertainment is always at your expense, whether you realize it or not," read a recent post on the account. "Wrecking your infrastructures since 2011."  Analysts said the group appears to be some sort of spin-off of "Anonymous," the loose coalition of hackers that formed in support of whistle-blower site WikiLeaks.  But while Anonymous has its own set of moral codes and is largely politically motivated, LulzSec tends to be random.  For every hack like the one on PBS, which the group said came out of anger over a documentary about WikiLeaks, there's the cracking of porn site pron.com -- and a subsequent public list of members' e-mail addresses and passwords.  Breaches are often followed by cautionary notes: Some have even denigrated their own hacking abilities, saying the sites they targeted were incredibly easy to penetrate.  "These seem like they're probably some kids in the garage or something that are just having fun," said David Gorodyansky, CEO and co-founder of security software firm AnchorFree.  A request for comment sent to the group's Twitter account was not returned Thursday.  Click on the group's website and the theme song from "The Love Boat" plays over an image of what the group calls "The Lulz Boat." The logo is a cartoon dandy in top hat, monocle and handlebar mustache.
They've breached or busted the websites of the CIA, PBS and the U.S. Senate, and launched at least part of an extended attack on Sony, whose PlayStation Network was brought to a grinding halt for