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Nathan Sportsman
Nathan Sportsman is the founder and CEO of Praetorian, an Austin-based offensive cybersecurity firm he started in 2010 and bootstrapped for a decade before taking a Series A led by McKinsey in 2020. Beyond running the company, he hosts and produces 'Where Warlocks Stay Up Late,' a long-form interview series documenting the hackers who built the field. He is a contributing author to 'Hacking Exposed,' a U.S. patent holder, and a former adjunct professor at UT Austin.
Vinnie Liu
Vinnie Liu is the co-founder and CEO of Bishop Fox, the largest private professional services firm focused on offensive security testing. Starting his career as an NSA analyst at age 17, Liu co-founded Bishop Fox in 2005 with Francis Brown, bootstrapping it for 13 years out of an Arizona living room before raising $175M in venture funding. Today, Bishop Fox serves 26% of Fortune 100 companies and 8 of the 10 largest global tech firms, combining elite human testers with its proprietary Cosmos platform for continuous attack surface management and AI-augmented penetration testing.