With great desire and diligence, what can you learn about a person?

Question

Information Security

hello. if you make an effort, what can a person learn about another person on the Internet? for example, can it connect to the front camera or find out the location, if no files have been taken from the curious, downloaded. can this be done by an administrator or a simple user (a simple user on that site)?

Answer 1

Hello,
With a great desire and diligence about another person, you can find out on the Internet everything that he left about himself there.

Answer 2

The question is incorrect. Who is the first person and who is the second person? To what extent is the former interested and what opportunities does he have?