One of the most important principles of ethical hacking is... ethics.
Ethical hacking revolves around the principle of "do no harm", and means that as hackers are finding vulnerabilities, they have to make sure to maintain the safety and integrity of the individuals, companies and businesses involved.
Be professional and respectful
Follow the CIA Triad
Don't do anything illegal
Report any breaches or vulnerabilities
For an example of a good Code of Ethics, please visit: