A recent AP survey of 10 leading voice biometric vendors found that more than 65 million people worldwide have had their voiceprints taken, and that several banks, including Barclays PLC in Britain and Minneapolis-based U.S. Bancorp, are in the process of introducing their customers to the technology.

via Banks harvest callers' voiceprints to fight fraud.

Because keeping people’s details without their knowledge or consent is fine, right? Not.