Spencer, known as sp3nx0r or the Securimancer, is a seasoned security professional with nearly 20 years of experience in the industry. With a background in General Engineering from the University of Illinois at Urbana-Champaign, Spencer initially dabbled in software, evolving from a builder to a breaker and then returning to his roots as a builder in the cybersecurity realm. He began his career at Deloitte, where he led significant projects in SAP security, such as Walmart's financial system implementation.

Transitioning into IT security management, Spencer honed skills in penetration testing and system administration while managing cybersecurity for a retail energy company. His leadership experience deepened at Centrica, where he tackled global security challenges across multiple business units. Currently, as a key figure at Reddit, he has been instrumental in enhancing the platform's security infrastructure, launching bug bounty programs, and addressing high-profile incidents. Spencer's journey reflects his commitment to improving cybersecurity while fostering collaboration and innovation within the field.