The software, called ‘Nuance FreeSpeech’ comes from the Stamford Research Institute – the same folks who created Siri before Apple bought it – and uses voice biometric technology to compare the callers voice to that of a blueprint Barclays has on file. Once that’s all done and dusted, a Barclays representative will have the all clear to continue on with the call. Barclays is actually the first financial service to deploy passive-voice biometrics as a primary means of customer authentication.

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