A new customer at a bank that uses fingerprint scanners to authenticate its users is surprised when he scans his fingerprint and is logged into another customer's account. What type of biometric factor error occurred?

Type 2 errors occur in biometric systems when an invalid subject is incorrectly authenticated as a valid user. In this case, nobody except the actual customer should be validated when fingerprints are scanned. Type 1 errors occur when a valid subject is not authenticated; if the existing customer is rejected, it is a Type 1 error. Registration is the process of adding users, but registration errors and time of use, method of use errors are not specific biometric authentication terms.