YC-Backed PayTango has a bold claim, they want to be able to link the credit cards in your wallet to your fingerprints. A great idea in theory, but one that can easily has been proven to fail.
We’re not sure how they were able to get past any of the Y Combinator, but there are numerous ways to easily fool the fingerprint scanners.
Here are a few that were a simple google away, my favorite being the Mythbusters.
Sorry PayTango, great idea, but you have a HUGE security risk to deal with before any credit card company should allow you access to their customers information.