A biological data registration support system comprising a biological data registration support device and a server, the biological data registration support device comprising: a control portion configured to acquire a plurality of registration scenarios, each including at least one verification method and associated with respective services, identify a verification method that is commonly included in the plurality of registration scenarios as a common verification method, and acquire one set of biological data for registration regarding the common verification method and one set of biological data for registration regarding the verification method other than the common verification method; a transmitting portion configured to transmit the biological data for registration and the plurality registration scenarios acquired by the control portion; a receiving portion configured to acquire, from the server, a plurality of candidate scenarios including a combination of a plurality of the verification methods; a display portion configured to display the plurality of candidate scenarios in association with each of a plurality of the services; and an input portion configured to select one of the candidate scenarios as one of the registration scenarios for use to receive one of the services, wherein the server is configured to select one or more of the verification methods from a plurality of verification methods input by the input portion to generate a scenario, each verification method included in the generated scenario being associated with a security value indicating the security level of the verification method, the security level indicating a degree to which the verification by an impersonation attacker attempting to receive a service will fail, calculate a scenario security value indicating the security level of the scenario on the basis of the security value of each of the one or more of the verification methods included in the generated scenario, in case of two or more of the verification methods being included in the generated scenario, and transmit, when the scenario security value satisfies a predetermined condition regarding the service, the scenario, as a candidate scenario, in association with the service to the biological data registration support device. a control portion configured to acquire a plurality of registration scenarios, each including at least one verification method and associated with respective services, identify a verification method that is commonly included in the plurality of registration scenarios as a common verification method, and acquire one set of biological data for registration regarding the common verification method and one set of biological data for registration regarding the verification method other than the common verification method; a transmitting portion configured to transmit the biological data for registration and the plurality registration scenarios acquired by the control portion; a receiving portion configured to acquire, from the server, a plurality of candidate scenarios including a combination of a plurality of the verification methods; a display portion configured to display the plurality of candidate scenarios in association with each of a plurality of the services; and an input portion configured to select one of the candidate scenarios as one of the registration scenarios for use to receive one of the services, wherein the server is configured to select one or more of the verification methods from a plurality of verification methods input by the input portion to generate a scenario, each verification method included in the generated scenario being associated with a security value indicating the security level of the verification method, the security level indicating a degree to which the verification by an impersonation attacker attempting to receive a service will fail, calculate a scenario security value indicating the security level of the scenario on the basis of the security value of each of the one or more of the verification methods included in the generated scenario, in case of two or more of the verification methods being included in the generated scenario, and transmit, when the scenario security value satisfies a predetermined condition regarding the service, the scenario, as a candidate scenario, in association with the service to the biological data registration support device.