Banks, credit card companies: Give me an API for accessing my own data. Give me an opportunity to set a callback address that gets pinged whenever my card is used somewhere. Even better: make it possible for this callback to decline transactions (obviously this comes with certain problems).
This would open up innovation and I'm sure this would lead to interesting solutions for combatting the fraud.
In EU something a little bit like this will become mandatory for banks. To my understanding one part of Payment Service Directive 2 (PSD2) is that banks will be required to allow third party access to bank account statements (on customers permission, of course).
This would open up innovation and I'm sure this would lead to interesting solutions for combatting the fraud.