said by article :

Today, few malware developers use their own code. They write it for the same reason commercial software developers do: to sell it for a healthy profit. If you've ever bought anything online, buying from them may be disconcertingly familiar.

If you want to break into a computer or steal credit card numbers, you can buy the necessary software online, just like almost anything else. More than that, you can find user friendly, point-and-click attack applications that have been pre-tested and reviewed by experts, and read through customer feedback before making your purchase. You might even be able to buy technical support or get a money back guarantee. Some developers offer their malware through a software-as-a-service model. If you prefer an even more hands-off approach, you can simply buy pre-screened credit card numbers and identity information itself, or sign a services agreement with someone who will do the dirty work for you.