" Using DDoS attacks, they caused the main Scientology Web site to crash intermittently for several days. Anons created a “Google bomb,” so that a search for “dangerous cult” would yield the main Scientology site at the top of the results page. Others sent hundreds of pizzas to Scientology centers in Europe, and overwhelmed the church’s Los Angeles headquarters with all-black faxes, draining the machines of ink. The Church of Scientology, an organization that reportedly has more than a billion dollars in assets, could withstand the depletion of its ink cartridges. "
source: http://www.newyorker.com/magazine/2014/09/08/masked-avengers