With the increasing reliance on cloud services across various sectors, ensuring robust security and efficiency has become a critical concern for service providers and users alike. Traditional methods of authentication, such as passwords and PINs, are increasingly susceptible to breaches and unauthorized access, particularly in the face of sophisticated cyber threats. In response, biometric authentication has emerged as a powerful solution to enhance cloud service security by leveraging unique, user-specific traits such as fingerprints, facial recognition, and retinal scans.