Many of the most popular applications, or "apps," on the social-networking site Facebook Inc. have been transmitting identifying information -- in effect, providing access to people's names and, in some cases, their friends' names -- to dozens of advertising and Internet tracking companies, a Wall Street Journal investigation has found. The issue affects tens of millions of Facebook app users, including people who set their profiles to Facebook's strictest privacy settings.
- Read the article: The Wall Street Journal
