Security-conscious online shoppers have long feared that thieves will snatch their credit card number and other personal information right out from under their fingertips as they nervously click the "buy now" icon on retailers' Web sites. The proof is in the numbers: 80 million consumers who use the Internet do not buy online. The majority of these online shoppers cite safety and security concerns as the primary deterrents, according to Gartner and JupiterResearch