January 10, 2011
By Jami Makan
In its seven years, Facebook has evolved quickly, adding features like instant messaging and news feeds. But critics say some developments can compromise user privacy. For instance, you can share online content withFacebook friends using the ubiquitous “Like” button. But press it or not, if you’re logged in to Facebook while surfing, it will know when you visit any site with these so-called social plug-ins, says Nicole Ozer, a policy director at the ACLU of Northern California. “Facebook can essentially track you around the Web,” she says. Facebook makes all such policies known to users, but critics wonder how many people are paying attention. Responding to a letter from privacy groups last year, Facebook said it stores users’ Web-surfing data for no longer than 90 days.