US Patent 10997609 Biometric based user identity verification

A computer-implemented method includes obtaining user data associated with a first user, the user data including biometric data associated with the first user and personal information of the first user; conducting a biometric similarity search in a historical user database based on the biometric data; determining, based on the biometric similarity search, that multiple historical users have similar biometric data to the first user; retrieving corresponding personal information of each of the multiple historical users; generating a respective personal information similarity score for each of the multiple historical users; and identifying, as the first user, a historical user of the multiple historical users, the personal information similarity score corresponding to the identified historical user indicating a higher similarity than the personal information similarity scores corresponding to other historical users of the multiple historical users.