The latest report claiming to provide useful stats on the scale of online piracy comes from Envisional, a subsidiary of NetNames. It has published a follow-up to its 2011 report into piracy, claiming that the number of people “seeking infringing content” online has grown from 297.5m to 327m in the last two years. “In 2010, we measured 3,690 petabytes of infringing content, it’s the absolute amount of data that was being infringed. By 2012, that had grown to 9,570 petabytes,” claims the report. “A petabyte is 1,000 terrabytes, a terrabyte is 1,000 gigabytes, and a gigabyte is 1,000 megabytes. So you can see just how much content we’re talking about.” It stops short of placing a value on all this content, while noting that a growing number of piracy sites are making money from a mixture of ads and subscriptions.