The post in question contained a BitTorrent file – the most widespread and efficient filesharing method on the web – containing an illicit copy of a second-rate Kiefer Sutherland horror film called Mirrors. Though the mainstream media ignored it, this was a landmark moment for millions of filesharers worldwide: the 1,000th movie uploaded by aXXo, the internet’s most popular and enduring pirate. If you already know his name, chances are you’ve been doing something illegal. This aXXo may be anonymous, but he (or she, or they) is a global brand. His most popular uploads are downloaded illegally by up to a million internet users per week. His files regularly make up more than one-third of all the films trafficked on BitTorrent.