ANZ Bank is looking into using voice biometrics for improved security within its mobile banking platform.
It plans to offer use of the voiceprint authentication technology for customer transactions higher than $1000 through the ANZ mobile banking app.
Authorising transactions over $1000 currently requires customers to either use internet banking or visit a branch.
ANZ's partner is voice recognition company Nuance Technology, best known for its Dragon NaturallySpeaking dictation software.
Peter Dalton, ANZ's managing director of customer service and digital channels, said voice biometrics makes banking more convenient while strengthening security.
He said a person's voice has five to ten times as many security points as other methods like fingerprints.
Nuance's technology is able to differentiate between identical twins, Dalton said. It can also tell if a voice recording is being used.
The bank will undertake a pilot of the technology in May with staff and select customers on its Grow by ANZ mobile app.
Following the conclusion of the trial, ANZ plans to add voice biometrics to its GoMoney banking app and other digital services. The bank did not give a date for the rollout of voice biometrics to all its customers.
The techology is also used by banks in the United Kingdom, including Barclays, HSBC, and RBS.