Justin "JD" Nir is an Associate Security Consultant at ISE. He has previously held positions as a Software Engineer and a Robotics Engineer, but now enjoys breaking into programs rather than writing them. JD earned degrees in Discrete Mathematics and Computer Science from Carnegie Mellon University. He lives in Baltimore, Maryland where in his spare time he enjoys rock climbing and the Magic: the Gathering trading card game.

Independent Security Evaluators ("ISE"), the first company to exploit the iPhone, is a widely recognized network security-consulting firm dedicated to providing unbiased and scientifically motivated approaches for improving security.