First of all, analyze whether the person who extracted your information will use it to do bad things, if yes, then the first time to quickly call the police, the police to solve the problem.

Secondly, if it does not matter, then do not think too much, now the society where there is no privacy to speak of, every organization is in the set of your information, and then big data analysis processing, you just need to pay attention to the next step is not someone to use the information to scam you, to prevent the in place on nothing.