This news article caught my eyes because of the data privacy issues I see in this. Apparently a retail store in Chicago area stopped allowing biometrics payments, the reason being, the company behind the technology, Solidus Networks Inc., a provider of payment processing, is no longer operating its biometrics unit. The company went bankrupt sometime back. Now the question arises, what happens to all the Finger scans that the company must be having.

"If you think you've got problems when someone steals your Social Security number," said Saffo, "it's a much bigger deal if they steal your thumbprint."
Decentralized biometric systems that enable customers to keep their fingerprint information in their own cell phone or personal computer are inherently safer than centralized systems, Saffo said, though nothing is absolutely safe.

What does law say in such kind of scenarios?

Convenience Store News reports:

Pay By Touch and NCR Corp. are combining their hardware and software solutions to offer retailers a single point of contact for supporting their entire merchant and consumer biometric needs.

"Consumer demands for convenience are growing at an unprecedented pace, and retailers of all sizes need a fast, simple and secure solution that provides the ultimate customer service," said Stephen Reade, senior vice president of product of Pay By Touch. "Our alliance with NCR addresses these needs with a fully integrated solution that improves the checkout experience -- and merchants’ top and bottom lines -- while also positioning our services for expansion into other vertical markets."

Using NCR’s biometric-enabled point-of-sale solutions, retailers can use the Pay By Touch authentication and payment service, providing shoppers a convenient and secure way to pay for goods with the touch of a finger.