One way cyberbullying can happen is through direct messages. People can make anonymous numbers just to harass other people to try to make themselves feel better. This can usually be solved by blocking the number, but they may just make more numbers and keep harassing the victim.
Cyberbullying is also prevalent on video games, as people can get toxic when they lose or win. It can be harmful as there is sometimes no easy way to report them, and there is usually no way to prove that they did anything
Cyberbullying can also very prevalent on social media. Since people very rarely ever report it on websites such as Instagram, Twitter, Facebook and Snapchat, it keeps happening. Even if someone is reported and banned, they can just make a new account and continue.