This article feels like hyperbole:
The scam has arrived in Australia after being used in the United States and Britain.
The scammer may ask several times “can you hear me?”, to which people would usually reply “yes.”
The scammer is then believed to record the “yes” response and end the call.
That recording of the victim’s voice can then be used to authorise payments or charges in the victim’s name through voice recognition.
Are there really banking systems that use voice recognition of the word “yes” to authenticate? I have never heard of that.
from Stealing Voice Prints