Definition
Means a natural person who reports or publicly discloses information on breaches acquired in the context of his or her work-related activities
Source
Point (7) of Article 5 of Directive (EU) 2019/1937 of the European Parliament and of the Council of 23 October 2019
Link
https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32019L1937