Amazon expands palm-reading payment system as pandemic drives down cash use

One potential risk for the new contactless payment method is how it will be regulated.

Several state laws are beginning to cover biometrics as part of privacy laws designed to protect personal information. The new laws outline requirements around the collection of that data, including express consent and the ability to opt out of participating in a program like Amazon One, said Michelle Cohen, chair of the data privacy practice at the law firm Ifrah Law.

“State laws really focus on full notice, explaining what you are collecting, how you’re using it, how you share it, how you retain it — that is going to be more and more important,” she said.