This book provides guidance to the laws of whistleblowing in the EU banking and financial sector. Covering all the relevant EU legislation, including the Directive on the protection of whistleblowers, the book provides insights from France, Luxembourg, and Ireland alongside the relevant international, Council of Europe, and US laws. Following the adoption of the Directive on whistleblowing, the book offers the necessary understanding of the legal landscape, relevant case-law analysis, and examples stemming from EU and US jurisdictions. Providing clarity and expert analysis in a complex area, the book is a must-read for researchers, government officials, and practitioners.