This research project report delves into the realm of biometrics for authentication, exploring its security and privacy implications. The report begins with an introduction that defines biometric authentication and highlights its significance. A comprehensive literature review follows, analyzing various research articles and authors' perspectives on the subject. The report then elaborates on the advantages of biometric authentication, outlining the benefits it offers to individuals and companies. Subsequently, it addresses the challenges and problems associated with implementing biometric systems. The report further explores the diverse applications of biometric authentication across various fields, including criminal investigation, network access, e-commerce, corporate IT, air transport, and financial sectors. A proposed solution is presented to address the security concerns surrounding biometric data. Finally, the report concludes by summarizing the key findings and outlining potential areas for future research.