Internet

Credit

Card

Security

There has been concern about giving out Credit Card numbers over the Internet.
However, the consumer's liability for a stolen credit card is only $50 according to United States law. Furthermore, if a merchant does not get the card holder's signature and your number is stolen (for example, by using an 800 number OR by sending your number over the internet), the consumer's liability is exactly $0.00.

That's right. It won't cost you a penny if your number is stolen. So why is it such a big deal and why is everyone talking about encryption? Well, if you're not liable that means the credit card companies are.

However, if you explore the issue further, there is only one case of credit card
numbers being stolen over the internet. In that case, a hacker broke into a
company's computer and stole files to obtain the numbers. So, while the thief did use the internet to steal the numbers, those numbers were supposedly safe in the
company's computerized accounting system. There is no known case of a number being stolen during a transaction.

Underground called Myths, Truths and the 'Net by Simson Garfinkel.