Banks absolutely do this once they have the ability to talk to the OS. I've built 3 banking apps for iphone/ipad now and client side verification was involved i

Banks absolutely do this once they have the ability to talk to the OS. I've built 3 banking apps for iphone/ipad now and client side verification was involved in all of them after first login. The problem is browsers just don't have a good standard way of accomplishing this.