Smartcards versus Credit Cards

The actual trend of Credit card companies is turning to smartcards to help them fight fraud.
But manufacturing problems may mean that they are no more secure than existing cards.

Conventional credit cards hold information in a magnetic strip that typically holds about 200 bytes of information (enough for the card and version number, expiry date and owner's name).
Smartcards have a built-in microprocessor that can handle several kilobytes of data, equivalent to pages of information.
Having a tiny computer on board means that each card can have a unique identity, and this ought to help to protect the information held on it.
But to give a card an individual electronic signature, its built-in processor has to do a long calculation.
This is a time-consuming process, so some card manufacturers intend to issue cards with one of several thousand preprogrammed identities.
Each card will therefore have thousands of duplicates, all of which will be vulnerable if a criminal cracks the code for any one of them.

Card manufacturers say the problem will be solved as smartcards become more powerful, in the meantime we will go on using Credit Cards.
But not all Credit Cards are the Same.
How to choose then?
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So, now you know what to look for with Credit Cards.


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