[Nancy1999]

Originally Posted by my2boyz

Hmmm...interesting...
But, isn't that temporary number still tied to your information? So, if someone did hack into it wouldn't it still show your info or would it show nothing?

It says:

From a security standpoint, here’s the advantage: If someone hacks into one of the websites where you’ve shopped and obtains your account number, the hacker gets the temporary number you used and that number can’t be used again. Your real credit card number is safe.
Credit.com (Worried About Online Security? Use a Temporary Credit Card Number | Credit.com News + Advice)

This sounds like a pretty good idea, especially for an expensive transaction.