Privacyscore goes one step further to rate each tracking company based on whether it confirms user anonymity, observes "sensitive boundaries," provide an opt-out choice, the number of months it retains your data, and whether the company provides industry oversight. Out of a possible 50 points, Words With Friends received 39.
How do some of the big Facebook app publishers rate? According to Privacyscore, Playdom and its Facebook apps received the top rating of 93 out of 100 Privacyscore points. Electronic Arts placed second at 91. Other app publishers "fell below the standard," according to Privacyscore: Gaming giant Zynga and its apps received 82 points while K-Factor Media received a score of 72.
"Facebook users deserve better than a C+ when it comes to their privacy," says Brock.
Kristin Burnham covers consumer technology, social networking and enterprise collaboration for CIO.com. Follow Kristin on Twitter @kmburnham. Follow everything from CIO.com on Twitter @CIOonline and on Facebook. Email Kristin at email@example.com
Read more about privacy in CIO's Privacy Drilldown.