12. The method of claim 9 , wherein the routing information is presented to the representative via a first notification, and wherein the computing device is configured to cause a second notification to be presented to the specialized representative, the second notification comprising information indicating that a caller associated with the in-progress telephone call is attempting to access one or more accounts and information identifying the voice biometric confidence score for the caller.
9. A method, comprising: at a computing device comprising at least one processor and memory storing computer readable instructions: receiving, by the at least one processor, a sample associated with an in-progress telephone call, wherein receiving the sample associated with the in-progress telephone call comprises capturing one or more utterances that are responsive to prompts provided by a representative during the in-progress telephone call; determining, by the at least one processor, a voice biometric confidence score based on the sample; determining, by the at least one processor, to route the in-progress telephone call to a first endpoint based on the voice biometric confidence score, wherein determining to route the in-progress telephone call to the first endpoint based on the voice biometric confidence score comprises: based on the voice biometric confidence score falling below a threshold during the in-progress telephone call, providing routing information to the representative, the routing information being configured to cause the representative to transfer the in-progress telephone call to a specialized representative for handling as a potentially illegitimate call; and based on the in-progress telephone call being transferred to the specialized representative, determining, by the at least one processor, to initiate recording and analysis of the in-progress telephone call, wherein a recording of the in-progress telephone call is saved and sampled to create a defensive voiceprint for identifying a caller associated with the in-progress telephone call as an illegitimate caller.