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This August 2014 photo provided by Shu Chien shows her son Moshe Kai Cavalin at the DEF CON 23 hacker's conference in Las Vegas. Cavalin, of San Gabriel, Calif., earned a bachelor’s in math from UCLA at age 15, and is taking online classes through Brandeis University, near Boston, towards a master’s in cybersecurity. He’s also working for NASA, where he is developing aircraft tracking technology. (Shu Chien via AP)

This August 2014 photo provided by Shu Chien shows her son Moshe Kai Cavalin at the DEF CON 23 hacker's conference in Las Vegas. Cavalin, of San Gabriel, Calif., earned a bachelor’s in math from UCLA at age 15, and is taking online classes through Brandeis University, near Boston, towards a master’s in cybersecurity. He’s also working for NASA, where he is developing aircraft tracking technology. (Shu Chien via AP)

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