Check your phone settings; new updates now require mic, location, file sharing, and access to nearby devices to even take a damn PHOTO! Motion sensors on in numerous apps where not needed at all

Cover front and back cameras, put cut headphone cord in aux when not using phone to make calls, keep phone off and at home as much as possible.

Oh, and always say irrelevant random stuff around your phone since THEY are always listening; I always give a shout-out via voice or txt on my phone to tell the NSA spying bastards hi.