AI-driven bots and synthetic voices are increasingly involved in healthcare access attempts and fraud, exploiting human trust and exposing the limits of knowledge-based authentication. Voice-based impersonation, deepfakes, and automated social engineering now operate at machine scale—reshaping where identity risk actually lives in healthcare environments. As regulators and auditors raise expectations around provable, real-time access controls, security leaders must reassess how identity is verified across high-risk service desk and patient access workflows. This session breaks down what has changed, where controls are failing, and why reactive or retrospective defenses are no longer sufficient.