Cyberbullying involves the use of electronic communication tools like social media and text messaging to harass or bully an individual or group. It is considered willful and involves repeated harmful behavior online. Common acts of cyberbullying include offensive posts, messages, images, stealing passwords, and sending viruses. The document provides 10 tips to protect against cyberbullying, such as not responding to provocations, using proper online etiquette, saving evidence of harassment, and asking for help from authorities if feeling seriously threatened. It emphasizes thinking before posting online and protecting private information.