Take a close look at the back of your credit card, and you will probably see something along the lines of "Not valid unless signed." At the same time, there are many cardholders who believe that ...

Jan. 14, 2005 -- -- Walter Cavanagh has 1,497 valid credit cards ... "It's nearly perfect. I have a nearly perfect credit score. I only use one card and I pay it off at the end of the month.

A credit card could offer more robust fraud protection than your debit card. But if you use a credit card, ... director of payment technology at Valid, a credit card manufacturer.

There are two elements to credit card verification: first, checking that the credit card number in question is valid, and second, ensuring that the person presenting the card is the account holder.

Your credit card number usually consists of 15 or 16 digits, depending on the issuer. Every number of your credit card account conveys information, such as the industry, routing information for ...

When it seems like every credit card has some rewards program or special benefit, how is one supposed to know which card to use?If you can’t afford the annual fee, are there still valid credit ...

Credit card numbers aren't random, and they don't only identify your account. Here's how to decipher what your own credit card number means. ... If the result ends in a zero, the card is valid.

Most of us are curious beings by nature. So, if you've been staying awake at night wondering what your 16-digit credit card number means, it's your lucky day.