Dave Greenbaum has been covering consumer issues related to technology for some of the most respected daily, weekly and monthly publications since 1996. Look for product reviews, questions and answers, as well as general comments on the industry. Copyright 2003-2015.
Here's a tip I wrote for TheAppleBlog I've long used to obscure information in plain sight in my address book. I've never done it with credit cards, but used it as an example.
