Kids especially are vulnerable to the practice of cyber-bullying in which the perpetrators, anonymously or even posing as people their victims trust.The devastation of these online attacks can leave deep mental scars. In several well-publicized cases, victims have even been driven to suicide. The anonymity afforded online can bring out dark impulses that might otherwise be suppressed. Cyber-bullying has spread widely among youth, with 42% reporting that they have been victims, according to a 2010 CBS News report.