Our company provides omnichannel (web, mobile, etc.) solutions for the banking industry.
One of our customers is pushing for obfuscating or encrypting the contents of the form fields (client-side, on the fly) in its HTML apps (ie. web banking), they argue that this prevents users from "seeing" the field values when inspecting the web page using Firebug and similar tools.
I cannot see or imagine a valid reason for this. Can anyone argue in favor of this?