"Harassment is a form of discrimination. It involves any unwanted physical or verbal behaviour that offends or humiliates you. Generally, harassment is a behaviour that persists over time. Serious one-time incidents can also sometimes be considered harassment."

From the Canadian Human Rights Commission

Some forms of harassment are considered crimes under the Criminal Code of Canada. They are spread out in different sections of the Criminal Code and include:

• Stalking, referred to as Criminal harassment 
• Uttering threats
• Intimidation
• Mischief in relation to data
• Unauthorized use of computer
• Identity fraud
• Extortion
• False messages, indecent or harassing telephone calls
• Counselling suicide
• Incitement of hatred
• Defamatory libel (find out more in our Defamation section)
• Child pornography
• Non-consensual distribution of intimate images

This information comes from Legalline.ca's page on Cyberbullying and Get Cyber Safe from the Government of Canada