The Need for Another Layer of Security
The very nature of interconnected networks requires that all information be sent in a format that can easily be intercepted by any client on a physical network segment. The data must be organized in a structured, common way so that the destination server can translate it into the proper information. This simplicity also gives rise to security problems, however, because intercepted data can easily be misused if it falls into the wrong hands.
The need to make information unusable if intercepted is the basis for all transit-level encryption. Considerable effort goes into both sides of this equation: Security specialists develop schemes to encrypt and disguise data, and hackers and other security specialists ...
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