That's just the tip of the information iceberg. Today, there are search engines or lookup services that will find and send your information to anyone willing to pay for it, including assets, background checks and verification of professional license information. Sorry, to disappoint you - you are not safe from the ravages of the information age. Millions of people have never surfed the Net and yet data about them is easily obtained from the Internet and traded by telemarketers. You'll be amazed.
Cookies can divulge information about sites visited or products bought.
In some cases they may even contain Social Security or credit card numbers. People-finder sites or search engines on the Internet offer not only addresses and phone numbers of lost friends but detailed street maps to their homes. But all is not lost. We can still protect ourselves albeit in a limited manner. If you feel that your privacy has been violated, you should let someone know, particularly the offending party.