CentralNotice From Wikipedia, the free encyclopedia Jump to: navigation , search The Jester th3j35t3r Nationality American Occupation Grey hat hacktivist Known for Hacking Anti-American, jihadist, and homophobic websites Website http://jesterscourt.cc/ The Jester (also known by the leetspeak handle th3j35t3r [ 1 ] ) is a computer vigilante [ 2 ] who describes himself as grey hat [ 3 ] hacktivist . [ 4 ] He claims to be responsible for attacks [ 4 ] on WikiLeaks , [ 5 ] 4chan , [ 6 ] Iranian President Mahmoud Ahmadinejad , [ 5 ] and Islamist websites. [ 7 ] He claims to be acting out of American patriotism . [ 8 ] The Jester uses a denial-of-service (DoS) tool known as "XerXeS", that he claims to have developed. [ 5 ] One of The Jester's habits is to tweet "TANGO DOWN" on Twitter whenever he successfully takes down a website. [ 6 ] 1 His...