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Now Playing: 06-07-12 Marketplace Tech Report

LinkedIn is a popular site for people looking to make contacts, find a new job, or, apparently, steal millions of passwords. Over six million user passwords may have been stolen from the social networking site in a recent hack. If you don't share password across websites, you'll probably be fine -- but most people use the same password for several sites because remembering a different one for each site is a pain in the neck, and those people need to change their password methods now.