CES 2014: Could a palm scanner make transactions safer?
15 January 2014 Last updated at 08:27 GMT
A device called the Pulse Wallet could create a new and secure way to confirm financial transactions.
The technology, which is currently in use in cash machines in Brazil and Japan, uses an infrared camera to scan the vein pattern in a person's hand.
While signatures can be forged and pin codes cracked, vein patterns are thought to be unique and more difficult to copy.
Marc Cieslak reports.