When an employee believes their employer has done something that is wrong or harmful to the public, and he or she reports alleged organizational misconduct to the media, government, or high-level company officials, what has occurred?

The correct answer is Whistle-blowing.

Explanation:

Reporting irregularities or whistleblowing is the term used when a person gives information regarding an illegal act, such as corruption, sexual harassment, etc. We can refer to this action with the name "report irregularities", "make a disclosure", "make a complaint of irregularities" or otherwise. The person usually has a close relationship with the organization, often it is an employee, but sometimes it can be a supplier or a customer. He becomes a whistleblower when he observes behaviors or actions that he considers to be improper, illegal behaviors and that do not respect the company's Code of Conduct, and reports that suspicion as a matter of reporting irregularities.

enjoy the dunce cap fool

answer; closing the loop;