Browser Wars

As regular readers of this site will know, I tend to avoid using Internet Explorer as much as humanly possible. Out of preference, I use either Opera or Mozilla for everything web-based. There’s a variety of reasons, but the main one is because IE is well known to be a major load of shite for security.

So why is it that companies like Royal Bank of Scotland and Britannia insist that people can only use their services through IE or old versions of Netscape?