WASHINGTON, D.C. - When users log out of Facebook and visit any of nearly a million sites with a "Like" button, that site sends a message to Facebook that the user has been there.
Lillie Coney from the Electronic Privacy Information Center said, "It's the equivalent of you closing your door or hanging up your phone but a person is still there in your home following you room to room but you can't see them."
It's called "frictionless sharing." Lawmakers call it an invasion of privacy. Democrat Ed Markey and Republican Joe Barton are pushing a "Do Not Track Kids" bill in Congress. In the letter, they are asking the Federal Trade Commission to investigate. The discovery comes as users adjust to other new changes. Facebook said the tracking is part of its security, and is intended to prevent someone else from logging in as you. They said the information is not logged or used to target advertising.
Facebook also said they have fixed the problem. To be sure, delete the browsing history on your computer, or use a separate browser for Facebook.