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BILL BALLAD (Bloomington, IL) has been an active member of the online Information Security community for many years. He recently led an effort to counter an international hacker group exploiting Option Cart, a widely-used e-commerce solution. TRICIA BALLAD (Bloomington, IL) spent several years as a web applications developer on the LAMP (Linux, Apache, Perl/PHP, MySQL) platform before becoming a full-time writer and technical editor. She has written online courseware on various consumer electronics and computing subjects.