What to do? Well, you could try an old-fashioned layering approach that was used by fortress builders. According to a new white paper on e-commerce security entitled "An Electronic Citadel -- A Method for Securing Credit Card and Private Consumer Data . . .
What to do? Well, you could try an old-fashioned layering approach that was used by fortress builders. According to a new white paper on e-commerce security entitled "An Electronic Citadel -- A Method for Securing Credit Card and Private Consumer Data in E-Business Sites," military fortification designers in the early 1800s used layers of barriers to weaken and stop attackers, while creating an impenetrable stone fortress at the heart of the citadel.

The white paper was written by Tom Arnold, chief technical officer at online security firm CyberSource Corp., for the technology working group of the e-business division of the Software and Information Industry Association, which is the principal trade association of the software code and information content industry.

"Unfortunately, many of today's e-businesses implement the direct opposite of a citadel," Arnold writes. "This can be viewed as an 'eggshell' security model: hard outer shell, soft in the center."

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