McAfee has released the results of a study today, finding that nearly half of online teens have shared personal information with strangers. The study looked at this and other areas of concern for parents. "Keeping kids safe no longer only means teaching them about the dangers of alcohol or how to deal with a school bully," says McAfee's Tracy Mooney. "This report is a wake-up call to the real dangers our teens face when they make themselves vulnerable online. As a mom,