AnonScan, Anonymous Scandinavia
Anonymous is a decentralized international hacktivist group/collective that is widely known for its various cyber attacks against several governments, government institutions, government agencies and corporations.
Dozens of people have been arrested for involvement in Anonymous cyberattacks in countries including the U.S., U.K., Australia, the Netherlands, Spain, India, and Turkey. Supporters have called the collective/group "freedom fighters" and digital Robin Hoods, while critics have described them as "a cyber lynch-mob" or "cyber terrorists".
In 2012, Time called Anonymous one of the "100 most influential people" in the world: http://content.time.com/time/specials/packages/article/0,28804,2111975_2111976_2112122,00.html