

A whistleblower (whistle-blower or whistle blower) is a person who exposes any kind of information or activity that is deemed illegal, unethical, or not correct within an organization that is either private or public. The information of alleged wrongdoing can be classified in many ways: violation of company policy/rules, law, regulation, or threat to public interest/national security, as well as fraud, and corruption. Those who become whistleblowers can choose to bring information or allegations to surface either internally or externally. Internally, a whistleblower can bring his/her accusations to the attention of other people within the accused organization. Externally, a whistleblower can bring allegations to light by contacting a third party outside of an accused organization. Whistleblowers can reach out to the media, government, law enforcement, or those who are concerned but also face stiff reprisal and retaliation from those who are accused or alleged of wrongdoing.
Above taken from Wikipedia on May 8, 2016.