ISO 19092 Financial Services - Biometrics - Part 2: Message syntax and cryptographic requirements is an ISO standard that describes the techniques, protocols, cryptographic requirements, and syntax for using biometrics as an identification and verification mechanism in a wide variety of security applications in the financial industry.^[1][2] This standard provides support for policy based matching decisions for remote authentication and allows biometrics to be used securely with the ISO 8583 retail transaction messaging standard.^[3] A secure review and audit event journal syntax is provided that allows many of the security controls specified in ISO 19092-1 to be implemented.^[4]