Detect breaches with Canary credit cards
I find it crazy that making a payment requires giving your full details. Using a credit card is less writing a cheque, more handing over a chequebook and saying "help yourself".<p>I dream of a payment system where payment generates some token, which the intended recipient can redeem, perhaps bearer ones for casual transactions, with support for periodic payments, revoking existing tokens or placing per-token limits.<p>One day perhaps...