I almost never sign the back of my credit card — for the exact reasons cited in this article. You are giving a stranger the license to copy your signature — which completes the list of what they need to duplicate the card and begin using it in your name.

Credit card readers can be purchased on the internet for less than the cost of a box of vitamins. They even know what you look like and will change their appearance to look like you.

If they want to see my signature, it can be found on my driver's license. “SEE ID” is all they need to see in the blank white window on my card.