SAN FRANCISCO — A potentially serious security breach affecting tens of millions of Facebook users is the latest privacy snafu dogging the world's largest online social network.
The 10 most-popular Facebook applications — including Zynga's popular social game FarmVille, which reaches 56 million people— have been transmitting users' personal identifying information to dozens of advertising and Internet tracking companies, according to a report in The Wall Street Journal.
In a statement, Facebook called the report "exaggerated" and said there is "no evidence that any personal information was misused or even collected."
It's also exploring technical solutions and expects to disclose details in the next few days. Zynga did not respond to a request for comment.