How [not] to shoot yourself in the foot with credit cards

One can't just run an e-commerce business without accepting credit cards. Doing that for one small site is an easy job, doing it for a global-scale internet company with a whole set of business projects is a bit more difficult. Which data can be stored? How to do fraud checks or data analysis? What does 3D-Secure mean for e-commerce and why is it a nightmare for security and UX? In this talk I'll try to explain common pitfalls in e-commerce and e-payments on a global scale. This talk will be in Russian, with the presentation slides in English.