Do Not Track

Thirty million Americans ​regularly watch porn online, according to the Wall Street Journal. That’s a lot more than fess up to it, even in anonymous surveys: In 2013, just ​12 percent of people asked copped to watching internet porn at all. But thanks to pervasive online tracking and browser fingerprinting, the brazen liars of America may not have a say in whether their porn habits stay secret. Porn watchers everywhere are being tracked, and if software engineer Brett Thomas is right, it would be easy to out them, along with an extensive list of every clip they’ve viewed.