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    Hacker's foundation unmasks child predators

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Hacker's foundation unmasks child predators

Chris Hadnagy is a social engineer who uses his hacking skills to uncover the identities of people posting child pornography online. CNN Tech's Laurie Segall reports.

Hacker's foundation unmasks child predators

Chris Hadnagy is a social engineer who uses his hacking skills to uncover the identities of people posting child pornography online. CNN Tech's Laurie Segall reports.