Explain the main differences between white hat and grey hat

Question

• Suppose a coworker approaches you and asks what an ethical hacker does. She does not understand the role that an ethical hacker plays in the security industry and assumes that such a hacker intentionally causes damage. Explain to your hypothetical coworker what an ethical hacker is and the fundamental manner in which such a hacker differs from a black hat hacker. Justify your response with an example of each type of hacker, and indicate the role each hacker plays in your given example.
• Explain the main differences between white hat and grey hat hackers. Provide a brief example of a grey hat hacker.