https://www.theverge.com/2018/6/28/17514968/facebook-patent-rumor-phone-microphone-tv-ads > Hi, everyone. Let’s talk about how to read patents again. > There’s a raft of headlines today claiming that Facebook has a patent on secretly turning your phone mic on when it hears a signal from a TV. The story appears to have picked up in Metro UK, which ran the headline “Facebook wants to hide secret inaudible messages in TV ads that can force your phone to record audio.”