OTP and password verification systems that require typing or graphics are vulnerable to security risks and information falsification. The Model suggests combining handwritten numbers with OTP-based authentication for secure data access. The Model provides better protection for accessing private papers and helps prevent data breaches and theft. When a keyboard input-based system is used for OTP or pin verification, the devices are susceptible to key logging attacks. In our model, the pin or OTP is validated using touch biometrics. On the mobile screen, users are given an interface to type the OTP/PIN numbers with their fingers or a pen. The handwritten numbers will be entered and compared to the produced OTP or pin. Handwritten numbers are specific to users and give an extra layer of security. An application for smartphones that uses a handwritten digit recognition model implements the model.