With iOS 8 installed on thousands of developer devices, details about the operating system continue to leak out. Some features could have an impact on FinTech.. The big ones we noticed were: Randomized MAC addresses and Safari credit card scanning.
Randomized MAC addresses - iOS randomizes the MAC addresses of iOS devices when scanning for WiFi networks, which makes it more difficult for companies to track and gather location data on a customer. Safari credit card scanning - In iOS 8, Safari can utilize the camera to scan in credit card numbers when making online purchases, a faster alternative than manually entering a credit card number. Currently, this scanning function is available in the App Store to scan in iTunes Cards, and the credit card scan functions in the same way.
http://www.macrumors.com/2014/06/09/even-more-ios-8-tidbits/