Thankfully, you don’t have to memorize your credit card number. But like all of these big numbers, your credit card number contains specific information, with each digit or set of digits meaning ...

The three men installed "sniffer" programs designed to capture credit card numbers, passwords and account ... that have already been issued and are active," Sullivan told CNN.

Many credit card companies now allow instant access to digital card numbers for use in Apple Pay, Google Wallet or online purchases. This means that as soon as a new card is issued, it may be ...