Is My MacBook Pro Always Listening?
If you are really worried about this, I recommend surgery.  I used to have this Windows box at work that would always make sounds for no reason, even though the sound was muted.  The solution was to open it up and physically disconnect the speaker.  Never made a sound again.If you don't want your computer to be used as a listening device, first try adjusting your tinfoil hat.  If you're still worried, open it up and remove the speakers and microphones.  Make sure you get them all!  Though I'm sure someone can figure out how to make a hard drive into a microphone, so you'd better replace that with an SSD.  Also get the camera while you're in there.There.  Now you just have to worry about the bugs the Agents put all over your house.