Konstantinos Karagiannis

Forged in the InfoSec trenches of the 90s and a pioneer in the quantum computing space since 2012, Konstantinos Karagiannis (KonstantHacker) lives at the intersection of cryptography and physics. As Protiviti's Director of Quantum Computing Services, he translates the existential threat—and promise—of quantum for the world's top organizations. When he's not behind the mic on The Post-Quantum World podcast, you can find him on stage at RSA, Black Hat, and right here at DEF CON, where he reigns as a Venerable Village Elder of the Quantum Village.