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Vittorio Bertocci, Garrett Serack, Caleb Baker

"Understanding Windows CardSpace: An Introduction to the Concepts and Challenges of Digital Identities"


Proliferation of Cards in My Wallet
I??™ve noticed over the years that I accumulate cards for my wallet at an ever-increasing
rate. Banks, airlines, car rentals companies, grocery stores, lenders, ?¬?tness
clubs, and governments all seem to have this desire to burden me with an
additional piece of plastic. I can??™t possibly carry all of these cards; my wallet has
?¬?xed dimensions, and it can only hold so much. I??™m forced to keep a stack of
cards at home that I don??™t use??”which certainly doesn??™t do the issuer any good.
They went to the effort to issue, press, and mail me a pretty card with their logo
and my name on it. Some organizations try to get around the wallet crunch by
giving me a piece of plastic to put on my keychain??¦I??™m running out of room
there, too.
As it stands, many of these cards can??™t be used without an additional piece of
identi?¬?cation. Car rental companies won??™t rent me a car without checking my
driver??™s license. I can??™t board the airplane by showing my airline mileage card.
On top of that, companies can often look up my information instantly without
the card and provide me with the exact same service, regardless of whether I
have in my immediate possession the card they issued to me.


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