N S A. Able to Foil Basic Safeguards of Privacy on Web The New York Times
Upon receiving authorization, the issuer bills the buyer's credit card and pays the vendor, without revealing the buyer's credit card number to the vendor. Thus the danger of an individual's credit card number being misappropriated is substantially reduced. However, as with traditional credit cards , the card issuer has a complete record of the individual's credit card transactions and must be trusted to safeguard this information. Anonymizing intermediaries and pseudonyms are insufficient for some types of transactions. Which are the 4 phases of e-commerce? The four phases are simple: Start with the basics; make things easy; make things familiar; and create an ongoing conversation. As each level of engagement is achieved, the overall user experience improves and the lifetime value of the relationship increases. The most basic form of "separate mechanism" to send the key is having a codebook of keys hand-carried to the recipient, as has been don...