It’s awe-inspiring and terrifying to know how much Google and Facebook know about us: where we go, what time we go to the gym, what you’ve searched, what searches you’ve deleted, what apps you use, what you and your friends talk about, and more. Dylan Curran, writing in The Guardian, says,
They can access your webcam and microphone
The data they collect includes tracking where you are, what applications you have installed, when you use them, what you use them for, access to your webcam and microphone at any time, your contacts, your emails, your calendar, your call history, the messages you send and receive, the files you download, the games you play, your photos and videos, your music, your search history, your browsing history, even what radio stations you listen to.
Curran provides a bunch of links to collections of data about you. You can even get your entire Big Brother profiles via google.com/takeout or https://www.facebook.com/help/131112897028467.
Another important link you may want to check out next is to the Electronic Frontier Foundation – a watchdog and advocacy group “Defending your rights in the digital world”.