From Isis to Atlantic Records: five targets of Anonymous's cyberwarfare

After the Paris attacks, the hacktivists have declared war on Isis. Will their tactics work?

Anonymous is one of the fightiest groups on the internet. The loose collective of hacktivists, born from the notorious 4chan forum, has declared war on nearly every hate figure imaginable, from Scientology in 2008 to, most recently, Islamic State. Here are some of its most notorious clashes.