The FBI has returned invaluable artifacts to Iraq, and publicly revealed that the relics were stolen by Department of Defense contractors.

http://www.informationweek.com/news/security/attacks/231001418
Excerpt:
In notes about the release, AntiSec criticized the lack of security it encountered when trying to infiltrate a server on Booz Allen's network, claiming it "basically had no security measures in place." In its work with the Department of Defense (DOD) and the Department of Homeland Security (DHS), Booz Allen contractors maintain high government security clearances.
"In this line of work you'd expect them to sail the seven proxseas with a state-of-the-art battleship, right?" the group wrote. "Well you may be as surprised as we were when we found their vessel being a puny wooden barge."
The group said it ran its own application on the network to collect data at will. AntiSec claimed it also was able to steal 4 GB of source code; however, "this was deemed insignificant and a waste of valuable space, so we merely grabbed it, and wiped it from their system."
Additionally, the group used the credentials it lifted from the system to take various data from other servers, as well as found what it claimed are clues to infiltrating other government agencies and federal contractors that it may pass on to other hackers, it said.

http://allthingsd.com/20110713/defense-contactor-booz-allen-is-latest-target-for-hacker-group-anonymous/
Excerpts:

1) Defense Contractor Booz Allen Is Latest Target of Hacker Group Anonymous

July 13, 2011 at 6:30
The latest target for the hackers formerly known as LulzSec: U.S. defense contractor Booz Allen Hamilton.

2) Booz Allen shares dipped a bit on the news, falling to $18.95 Monday from its Friday closing price of $19.39, but the shares recovered Tuesday to $19.54. Booz Allen listed its shares on the NYSE last year but is majority-owned by the Carlyle Group.

http://cleoland.pbworks.com/w/page/10373537/Project%20Chanology
Excerpt:
Anonymous protests Scientology centers around the world (February 10, 2008):


Something you probably won't hear much about on the news: more than 7000 people around the world mobilized to protest Scientology centers today. I ended up at the Enturbulation forums skimming the protest threads city-by-city--spearheaded by Anonymous, "a loose-knit consortium of hackers and activists" (for the internet savvy, read: 4chan's /b/tards. /b/ afraid), the "raids," depending on where you were, turned out to be peaceful, fun, meaningful, silly, inappropriate, educational, surreal, and sometimes all of the above.
In summary: The best macro ever.

4chan's /b/tards.

4chan is an English-language imageboard website. Launched on October 1, 2003, its boards were originally used for the posting of pictures and discussion of manga and anime. Users generally post anonymously and the site has been linked to Internet subcultures and activism, most notably Project Chanology.

/b/ afraid
The project was publicly launched in the form of a video posted to YouTube, "Message to Scientology", on January 21, 2008. The video states that Anonymous views Scientology's actions as Internet censorship, and asserts the group's intent to "expel the church from the Internet". This was followed by distributed denial-of-service attacks (DDoS), and soon after, black faxes, prank calls, and other measures intended to disrupt the Church of Scientology's operations. In February 2008, the focus of the protest shifted to legal methods, including nonviolent protests and an attempt to get the Internal Revenue Service to investigate the Church of Scientology's tax exempt status in the United States.