What are companies doing with the “data” that they steal when going on certain sites?

Question

I hear a lot of talk about companies getting hold of lots of data and information from your devices when you go onto certain websites, but what does that actually mean? What information are they getting and how is this bad for me and good for them?

In: 8

Answer 1

Most of the time this data and the selling of it, means information that can be used to sell ads space to advertisers that are targeted at you.