Parker Garrison is a GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) and GIAC GDAT, as well as a Toastmasters Advanced Gold Communicator. He is an avid competitor, placing first in the SANS NetWars Tournament and the One-Hour CTF at his most recent RSA Conference. He enjoys the challenge of subverting the intended functionality of systems and implementing resilient defenses, and sharing his knowledge with others. He presented on the subject of buffer overflows and exploit writing at DerbyCon in 2018 and developed the challenges for the first CTF competition at Southeast Linux Fest in 2019 (flagctf.com). Garrison’s passionate teaching style, with targeted interactive live demos, helps attendees learn useful techniques that they can apply to real-life problems outside the session.