A graffiti of Guy Fawkes mask, symbol of Anonymous, is pictured on April 6, 2013 in Florence. (Gabriel Bouys / AFP)

Israeli hackers, under the name Israeli Elite Strike Force (@IsraeliElite) waged a cyberwar against Anonymous' anti-Israel hack campaign, #OpIsrael. In response to Anonymous' escalation of attacks on April 7, Israeli Elite disabled dozens of sites within Pakistan, Iran, Syria and several north African states.