For as long as credit cards have been in use, it has
been standard operating procedure for issuers to urge cardholders
to sign the back of new cards as soon as the plastic arrives in
But in an era when credit card companies promote "zero
fraud liability," online transactions are commonplace and point-of-purchase
card readers and self-checkouts at retail stores essentially remove
clerks from even handling the card, let alone looking at the signature,
does it really matter if you do?
"There is very good evidence that signing the
back of your card is meaningless anymore," says Paul Mason,
assistant dean of the University of Kansas School of Business. Mason
is a certified fraud investigator and CPA who has been teaching
courses on fraud for the past eight years and is writing a textbook
on the topic for college-level instruction. "I can tell you
that in the Midwest, where I live, it is most unusual to have a
clerk look at the back of the card. They usually swipe it and hand
In truth, there is a large segment of the card-carrying public that
simply refuses to sign their cards, believing it helps protect them
from fraud if their cards are lost or stolen. Mason is one of them.
Instead, he writes "Check ID" on the signature panel.
Should a shopkeeper look at the back of his card, he says that phrase
should prompt a request to see a driver's license or other form
Another proponent of the "Check ID" practice
is David Dixon, a telecommunications consultant from Kansas City,
Kan., who says he travels over 100,000 miles each year. His rationale
is simple: "If I'm out on the road and I lose my credit card,
I want to make it as difficult as possible for thieves to use it,"
Dixon says. "The only thing I have signed is my driver's license.
I don't sign the back of my cards, period -- with one exception.
I did sign my Bank of America card because it has my picture on
it. I don't know why every credit card company doesn't do that.
There are people that resemble you, but the chance of them stealing
your card is remote. To me, not signing the card just makes good
sense. Anything to make it more difficult for thieves."
Lest you wonder, this "don't sign your card" is not a phenomenon unique to Kansas residents. The Web site ScamBusters.org wrote a piece in 2004 listing 21 steps to protect yourself against card fraud and instructed readers to sign their cards. The site was inundated with mail from people around the country who subscribed to the same theory as Mason and Dixon.
Prankster John Hargrave relates stories on his Web
site, Zug.com, of using increasingly wacky signatures to see if
anyone would ever notice if it looked like the one on his credit
card. For example, he paid for an order at a Krispy Kreme franchise
by signing the receipt "Dunk 'N Donuts." At a local aquarium
he signed his card receipt "Shamu" and drew a picture
of a whale. Both were accepted without question. His conclusion:
"Who checks the signature? Nobody checks the signature."
In his experience, Dixon says, few merchants bother to verify signatures. The one exception he's encountered in recent years: the U.S. Postal Service.