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In today's increasingly digital world, robust cybersecurity is more critical than ever. Biometric authentication using unique physical and behavioural traits for identity verification shows promise as a secure way to safeguard sensitive data and systems. Secure authentication of individuals is crucial for every transaction. Traditional authentication approaches include knowledge-based (passwords), possession-based (tokens), and biometric-based (fingerprints, face scans, etc.) methods. In these, biometric authentication is considered the most convenient and reliable. Unlike passwords and tokens, biometrics do not require memorization or physical objects for authentication. By leveraging a person's unique biological traits, biometric systems can simply and securely confirm an individual's identity. This article explores how AI is transforming biometric authentication to enhance cybersecurity. It examines the current landscape, challenges, and future outlook.