On Thursday, a start-up in San Francisco introduced a solution of all-in-one card called Coin Card which claimed to be a replacement for all the cards in one’s wallet. The small card functions as a storage or a medium for all the card information the owner has. The types of card are not not restricted to credit cards. When the owner wants to use a specific card, he/she can select the card on the Coin. It integrates an wireless phone chips which allows it to synchronize all the card information with the server. The transmitted information are protected by 128 bit encryption algorithm. It also includes a micro-battery which can last two years without replacement. The creator also add some safety protocols to avoid potential fraudulence. For instance, the Coin Card is tied to the phone of its owner. When the server detects the phone is at a certain distance away from his card, the Coin Card will be locked.
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