A whistleblower is a person who exposes misconduct, alleged dishonest or illegal activity occurring in an organization. The alleged misconduct may be classified in many ways; for example, a violation of a law, rule, regulation and/or a direct threat to public interest, such as fraud, health and safety violations, and corruption. Whistleblowers may make their allegations internally or externally. Whistleblowers frequently face reprisal, sometimes at the hands of the organization or group which they have accused, sometimes from related organizations, and sometimes under law. Questions about the legitimacy of whistleblowing, the moral responsibility of whistleblowing, and the appraisal of the institutions of whistleblowing are part of the field of political ethics.