https://theintercept.com/2017/12/22/sno ... ur-laptop/
Thought this article was quite interesting. They set up an old android phone and the application was able to monitor and log changes in accelerometer, access the camera, the microphone, etc. Basically everything the NSA and Google already do, but able to be viewed by you.
"Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics."