The patent application is labelled “Shape Overlay for Proof of Liveness” mechanism. The patented technology introduces an interactive challenge-response mechanism that requires users to engage with randomly generated shape overlays displayed on their device screens. The process enables real-time verification of a live subject, creating an additional barrier against attempts to bypass biometric security systems using pre-captured or AI-generated images. A key feature of the system is its universal compatibility with smartphone devices, eliminating the need for specialized hardware.