Social network “like” buttons can track your activity across the Internet.

Social network “like” buttons can indeed track your activity across the Internet. These buttons are embedded on various websites and act as web beacons that interact with the social network’s servers. When you visit a webpage that has a “like” button, the button can send information back to the social network about your visit, even if you do not click the button. This allows the social network to compile data on your browsing habits across multiple sites that use their social plugins, contributing to a profile of your interests and online behavior. This tracking is primarily used for advertising and personalization services.