If cyberbullying happens to you, you CAN take action. You can block abusers, take a break or delete apps. You can also report it to the social networks themselves; to someone you trust; or to the police.
DYK: cyberbullying can be prosecuted under Section 9 of the Cyber-Crimes Act of 2015 for use of a Computer Device for Malicious Communication of Obscene, Threatening or Menacing Material (defamatory content can be dealt with as a civil matter).