Tell your kids not to feel bad if they fall for fake friend requests in a social-networking site. After all, some of the smartest computer-security professionals have fallen for them. What's important is that they know to be alert. Accepting new friends indiscriminately is really becoming bad news, SecurityManagement.com reports. The article says two top network security executives conducted an experiment, creating "fake profiles of prominent computer security professionals" on several social-network sites, and then sending out "plenty of friend requests to other security experts. They were so astounded by the results they presented to the Black Hat hacking conference" in Las Vegas this week. "Each time they lured in more than 50 new friends within 24 hours. Some of those people were chief security officers for major corporations and defense industry workers."