I was making an online payment on my Discover Card account today when I noticed they are offering a computer program called Discover Deskshop that not only fills out web forms for you when you are making online purchases, it also has an option to use a unique one-time card number instead of your actual Discover Card account number. That means if you use their application, you never have to send your real card account information to online vendors. Instead you send a pretend card number assigned at the time of purchase by Discover, and that information can only be used for that one purchase.

I buy things online frequently. I'm a computer security guy by trade, so I am extra careful about how I do Internet purchases. I have one thing to say about Discover's Deskshop software:

THAT IS SO COOL.

There's also a web-based version that one can use from any web browser. It won't fill out purchase forms for you automatically, but does allow you to use one-time card numbers for purchases you make.

I installed it and used it for the first time today as I purchased a copy of HotRecorder (software that lets you record Skype conversations without the typical hassle). It worked great, but did not set the expiration date for me - I had to do that myself. Every other field it nailed right on.

I like this - it's a real step up in security, with the one-time card number and associated info. Discover's auto-complete software and one-time card number feature will mean I will be using that card more frequently for purchases, which mean it's good news for Discover and for the customer. Good deal.

I've scribbled out a few things in the image at right to protect myself, but you can get an idea of what the program looks like and how it works. It's all automagical. I have to log onto my Discover Online account in the program interface before I can use the program to make purchases (so moms and dads can rest assured Junior won't be able to make any sneaky purchases).

All I did was tell the program to fill out the form and it did the rest. I set the expiration date and executed the purchase.

Nice. No more taking the card out of my wallet and squinting my getting-older eyes to read the account info and type it in. No more fat-finger mistakes. And better security on top of it all.

Thanks, Discover - you just made me a much happier customer.

• The Discover DeskShop FAQ is here
• The Deskshop demos are here