A corporate whistleblower is an employee or insider who reports illegal, unethical, or fraudulent activities occurring within their organization. These activities may involve violations of laws, regulations, company policies, or ethical standards, such as financial fraud, corruption, or safety violations. Whistleblowers play a critical role in exposing wrongdoing that may otherwise remain hidden, often facing personal and professional risks for coming forward. In many countries, whistleblower protections exist to shield them from retaliation and to encourage the reporting of misconduct, such as the Whistleblower Protection Act in the U.S. and provisions under the Sarbanes-Oxley Act.