Bullying is unwanted aggressive behavior by another person or group of people. In bullying, there is always an actual or perceived power imbalance, and the aggression is repeated multiple times or is highly likely to be repeated. Bullying also includes cyberbullying, a type of aggression that is carried out through electronic means, such as through the Internet, e-mail, or mobile devices. People of all ages can be bullied, and bullying may take place at home, school, or work. Because of cyberbullying, bullying can occur almost anywhere at any time.