Rajen M. Parekh wrote:
Is it that somehow they find out what OS is being used ?? Both (Windows & Linux) mozilla versions are same - 1.7.3. Any clues ?
Its very trivial to find out the OS type of the system where the web request is coming in. So I wouldnt be surprised if they are checking for both the User agent and the OS type because you get both the parameters from the same string of info. I haven't tried what you have tried changing the User Agent in Firefox on windows (as I dont have a Windows$ setup) so I didnt knew what you have figured. However the concern is that we need to convince these banking sites that Linux is much more secure than the M$ flavours and they need to start building their apps to work on Linux system as well.