10/16/2009 - As information such as passwords and account numbers moves from computer to computer across the Internet, it is encrypted—jumbled into a non-comprehensible form. Encryption occurs when two parties—your personal computer and Amazon.com, for example—connect and exchange a “key.” Your browser then encrypts the information you want to send (like a credit card number), it flows in a jumble to Amazon, and then Amazon decrypts it based on the key that the two computers exchanged. Read more
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