NetAuthority: saving your bank account from the Russian mob, one algorithm at a time

Imagine this: you phone your bank, asking a service rep to pay a phone bill and transfer money from savings to checking. Only, instead of talking to the bank, you’re speaking to a crook who is talking to you on one phone … and your bank on the other. And when you provide him with all the authentication details your bank requires, he loots your account and transfers your funds into accounts he controls.