Katharine Gun

https://en.wikipedia.org/wiki/Katharine_Gun

Katharine Teresa Gun (née Harwood) (born 1974) is a British linguist who worked as a translator for the Government Communications Headquarters (GCHQ). In 2003, she leaked top-secret information to The Observer, concerning a request by the United States for compromising intelligence on diplomats from member states of the 2003 Security Council, who were due to vote on a second United Nations resolution on the prospective 2003 invasion of Iraq.