This Email Will Self-Destruct

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People who want to open email from patent attorney Andrew Currier have to know the drill. First, they must answer a predetermined question, such as "Where did we first meet?" If they answer correctly, they...

Self-destruct files to secure DVDs, CDs

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If technology firms like Sony and Microsoft have their way, songs and movies will expire after a single play -- unless you pay the copyright holder their due. The technology that makes this...

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