They are among the most sophisticated criminal syndicates on the planet, trading in a commodity worth hundreds of millions of pounds, and yet most of the members have never met one another. Operating under such names as WLW, Razor911 and ShadowRealm, they are part of the highly secretive 'warez scene' - an online community of hi-tech criminals responsible for pirating 90 per cent of the world's music, computer software and DVD movies.