Whisper is an app built specifically for spreading rumors and secrets, lets users post pictures and text anonymously. Apps like Whisper could potentially be a good outlet for teens, as anonymous confessions can help people unburden themselves. But Whisper shares the secrets based on geographic location, so the users nearest to your child are the ones more likely to see the secret. If your child reveals too much, it can put him or in a dangerous situation with friends or adversaries. The most dangerous apps for teens use GPS tracking to bring people physically together. Cyberbullying is much more hurtful when the person bullying your child moves from online to in-person abuse. In this case, Whisper seems like it could cause teens more harm than good.