Google, Nokia, Ericsson, Samsung clueless on NSA’s phone stalking

According to the Washington Post, the US National Security Agency has had the ability to track mobile phones even when they are switched off. It’s not new news, with the Post’s article published July 22 and its source, troops from the NSA’s Joint Special Operations Command (JSOC), stating they’ve been able to do this since 2004. The problem is, almost a decade later, no one knows how it was done.