Anonymous hacktivists breached the website belong to United States Sentencing Commission (ussc.gov) and defaced the site under the operation called "#opLastResort"
" Two weeks ago today, a line was crossed. Two weeks ago , Aaron Swartz was killed. Killed because he faced an impossible choice. Killed because he was forced into playing a game he could not win -- a twisted and distorted perversion of justice -- a game where the only winning move was not to play." The defacement message reads.
"With Aaron's death we can wait no longer. The time has come to show the United States Department of Justice and its affiliates the true meaning of infiltration. The time has come to give this system a taste of its own medicine. The time has come for them to feel the helplessness and fear that comes with being forced into a game where the odds are stacked against them."
The full defacement message can be found here:
http://pastebin.com/Fbx3k2pX
Few days back, Anonymous defaced a Massachusetts Institute of Technology(MIT) website to denounce the charges against him and urge computer crime law reform and more support for open access initiatives.
 hacked and defaced by Anonymous){kind=link}