This Recommendation provides a framework to ensure security and reliability of the flow of biometric information for telebiometric applications using mobile devices. This Recommendation defines 12 telebiometric authentication models depending on the configuration of the biometric sensor@ the mobile device@ and the server. It also specifies the threats in the operating telebiometric systems in the mobile devices and proposes a general guideline for security countermeasures from both the technical and operational perspectives in order to establish a safe mobile environment for the use of telebiometric systems. The following topics are addressed within the scope of this Recommendation: ?C Telebiometric security reference models in operating telebiometric systems using a mobile device including cloud computing services. ?C General related threats and countermeasures to ensure security and reliability for telebiometric applications using mobile devices.