Forensic Audit Trails and Biometric-Based Authentication

Forensic audit trails combined with biometric-based authentication represent a critical convergence in modern cybersecurity infrastructure. This chapter examines the technical implementation, forensic methodologies, and investigative frameworks for biometric authentication systems. The integration of immutable audit trails with biometric verification creates comprehensive forensic evidence chains essential for digital investigations. We analyze forensic challenges including spoofing attacks, presentation attacks, and biometric template security. The chapter explores multimodal biometric systems, liveness detection mechanisms, and blockchain-based audit trail implementations. Critical examination of privacy-preserving forensic techniques, GDPR compliance, and admissibility of biometric evidence in legal proceedings provides practical guidance. Real-world case studies demonstrate forensic analysis of compromised biometric systems.