Google keeps audio records of your 'OK Google' requests - Jun. 2, 2015

Chances are, Google (GOOGL, Tech30) kept every audio recording. And you can play them back to yourself. This is one of things some Google users were surprised to discover on Monday, when Google launched its new "My Account" feature. The company is trying to give users a better idea -- and more control -- over what information it collects. It's already obvious that Google remembers every text search you perform on its site.