This document provides an overview of whistleblowers and whistleblowing. It defines a whistleblower as a person who exposes misconduct or illegal activity within an organization. Whistleblowers often face reprisal from the accused organization. Legal protections for whistleblowers vary by country, with some providing comprehensive laws and protections while others offer more limited safeguards. The psychological impact on whistleblowers can also be severe, as they frequently experience stress, health issues, and damage to their careers due to retaliation.