Jester Jester A jester, court jester, or fool, was historically an entertainer during the medieval and Renaissance eras who was a member of the household of a nobleman or a monarch employed to entertain him and his guests. A jester was also an itinerant performer who entertained common folk at fairs and markets. Jesters are also modern-day entertainers who resemble their historical counterparts. Jesters in medieval times are often thought to have worn brightly coloured clothes and eccentric hats in a motley pattern and their modern counterparts usually mimic this costume. Jesters entertained with a wide variety of skills: principal among
The Jester (hacktivist) The Jester (hacktivist) The Jester (also known by the leetspeak handle th3j35t3r) is an unidentified computer vigilante who describes himself as a grey hat hacktivist. He claims to be responsible for attacks on WikiLeaks, 4chan, Iranian President Mahmoud Ahmadinejad, and Islamist websites. He claims to be acting out of American patriotism. The Jester uses a denial-of-service (DoS) tool known as "XerXeS", that he claims to have developed. One of The Jester's habits is to tweet "TANGO DOWN" on Twitter whenever he purports to have successfully taken down a website. The Jester first appeared on Twitter, where he announced his attack