Hey steemians, it will be a great and interesting post. Today you will learn a lot about your personal data, how they gather, where they can be seen and what it all will ultimately lead to.

For a start, who always knows where you are right now? Mama? Your girlfriend? Wife? Maybe Uber? Uber, yes, most likely. Who knows where we were on July 29, 2017? This is an interesting question.

You probably do not know, but google can tell you where you were yesterday, a week ago and even two years ago. Check *map*. See: the map will show which places you visited, how many stayed there and how you moved between them. Those who are hiding something or looking to be especially careful. Of course you can disable the map or geolocation, but if you have android phone then this does not help you, the phone will still send data about your location.

Google has an interesting *site* where you can see everything that the company knows about you, but it knows a lot. Google saves voice control to better recognize your queries. Also, Google keeps the news that interests you, the applications that you use.

Google already knows what you are buying on the Internet, but the company has decided to go even further and now it will monitor the purchases and in offline stores if they are paid via android pay the search engine will receive data on purchases in ordinary stores and compare them with clicks on the ad so they will be able to understand whether their advertising influenced the decision to purchase a particular product or to understand what advertisement for you to broadcast.

Social networks also make, for example, facebook. It knows that I'm interested in different start-ups and I have a samsung so it offers me advertising with this brand. But corporations do not always ask permission to access your personal information. They can download your files, listen to conversations or follow the movement and you will not know about it.

Let's check something, you probably noticed that different applications require access to the camera microphone and geolocation. You should disable permissions for social networks to avoid getting into the situation like *this guy*. He does not have a cat, he never looked for cats in google and goods in pet stores, nevertheless in Facebook he saw an advertisement of dry food for cats, because he specifically discussed with his wife and food for cats the presence of the phone application recorded sound from the microphone converted and into the text highlighted the keywords and picked up the suitable advertising most likely you also faced this.

Okay put off android, the apple went further and began to collect photos of their bra in a separate folder that can not be deleted. Be careful because all your pictures in the bra can now be found by anyone who has access to your phone.

Let's talk about more important. How can I be identified as a person. To collect data about the user it first needs to be identified for this we enter your login and password and leave a trace about your actions you can of course go through another account and even change devices from time to time. But even in this case there is a way to understand who is sitting at the computer because the user types the text between calls and the speed of dialing for all people is different already existing algorithm can use this information to determine who is sitting behind the keyboard.

I told you about the main methods of surveillance. If you want to know more or find out about the identification system in China, tell us about it in the comments.

Immediately sorry for the mistakes in the text, I use the translation.