This Resource clearly stated what cyber ethics is:

• Do not use rude or offensive language.
• Do not cyberbully.
• Do not plagiarise.
• Do not break into someone else’s computer.
• Do not use someone else’s password.
• Do not attempt to infect or in any way try to make someone else’s computer unusable.
• Adhere to copyright restrictions when downloading material from the Internet, including software, games, movies, or music.

https://www.cisecurity.org/daily-tip/know-the-rules-of-cyber-ethics/