Google Knows Everything About You!
When you search on Google, they keep your search history forever? That means they know every search you’ve ever done on Google. What most people don’t realize is that even if you don’t use any Google products directly, they’re still trying to track as much as they can about you. They aren’t really a search company anymore, they’re a tracking company.
Google also tracks every video you’ve ever watched on YouTube. Many people actually don’t know that Google owns YouTube now you know. If you use Android google also tracking every places you have been via google location services. All of text messages, photos even you’ve deleted. All of the apps how you use, where you use and when you use them.
If you use Gmail they have all messages of interacted with. You can not expect that they tracking much anything they can track, they will.