Google says the built-in microphone it never told Nest users about was 'never supposed to be a secret' (GOOG, GOOGL) Pulse.com.ghGoogle says the built-in microphone it never told Nest users about was 'never supposed to be a secret' Business InsiderBest Google Assistant devices for your home: Our top 10 Android AuthorityGoogle says the built-in microphone it never told Nest users about was 'never supposed to be a secret' Business Insider India10 things in tech you need to know today Business InsiderView full coverage on Google News