adamd and Zardus

CTF Radiooo

Capture The Flag Radiooo is a cybersecurity podcast focused on CTF competitions. Hosted by adamd and Zardus, founding members of the Order of the Overflow, the organizers of DEF CON CTF from 2018–2021, the podcast will discuss all aspects of the CTF scene: organizing, playing, and the history of this game that we love.

Author

adamd and Zardus

Category

Technology

Podcast website

ctfradi.ooo

Latest episode

Mar 18, 2026

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Episodes

025 - Chatting with NEW DEF CON CTF Organizers: Benevolent Bureau of Birds 18.03.2026

Youtube Video of podcast Shownotes and Links In this episode, adamd and Zardus interview the Benevolent Bureau of Birds (BBB), new DEF CON CTF organizers! Vie, Robert Xiao, Zaratec, Bluepichu, and MountainRose join us to discuss Capture The Flag (CTF) competitions in the era of AI and large language models. The conversation covers the history, challenges, and future adaptations of CTFs amidst tech...

024 - Chatting with Fish from Shellphish | 024 CTF Radiooo 04.03.2026

Youtube Video of podcast Shownotes and Links In this episod, adamd and Zardus interview THE Fish from Shellphish and angr, a prominent figure in the CTF community. They discuss Fish’s journey into CTFs, his experiences with Shellphish, and the evolution of CTF challenges. Fish shares insights on the importance of reversing skills, the development of the angr decompiler, and the impact of CTFs on l...

023 - Chatting with Robert Xiao from PPP | 023 CTF Radiooo 01.10.2025

Youtube Video of podcast Shownotes and Links In this episode, adamd and Zardus welcome Robert Xiao, an associate professor at the University of British Columbia and a seasoned CTF player. The conversation explores Robert’s journey from a background in human-computer interaction to becoming a prominent figure in the CTF community. They discuss his early experiences with game hacking, the challenges...

022 - Chatting with Vie from Maple Bacon / MMM 26.08.2025

Youtube Video of podcast Shownotes and Links In this episode, adamd and Zardus talk finally talk to Vie from Maple Bacon / MMM in an environment where we can actually hear her. We discuss the evolution of CTF teams, the importance of community and mentorship, and the journey of Vie from a competitive gamer to a key player in the CTF scene. Links Google CTF CTF Radiooo 006 with sirdarckcat CTF Radi...

021 - Live from DEF CON 33 with Andrew and Perri 18.08.2025

Youtube Video of podcast Shownotes and Links In this episode, which seems to be an annual tradition, adamd and Zardus report LIVE from DEF CON 33 about the AIxCC results, first alone then together with Andrew Carney and Perri Adams, the key people involved in creating and running the AIxCC. Links AIxCC @ DEF CON 33 Open-source AIxCC Systems

020 - AIxCC Wrap Up + THEME SONG?! 07.08.2025

Youtube Video of podcast Shownotes and Links In this unconventional episode adamd surprises Zardus with Adam’s mom Karlene and musician Swardy, to discuss a new collaboration of the CTF Radiooo theme song. The conversation explores the creative process behind the collaboration, insights into music production, and the importance of community and DIY ethos in artistic endeavors. In the normal episod...

01F - all_you_need_is_a_fuzzing_brain's AIxCC Final Submission 29.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with Jeff Huang, Ze Sheng, and Qingxiao Xu from the AIxCC team all_you_need_is_a_fuzzing_brain about their AIxCC final submission. We discuss the innovative use of an AI-focused approach in their CRS. The conversation also highlights the significance of static analysis, performance metrics, and the future of cyber r...

01E - Trail of Bits' AIxCC Final Submission 24.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with Michael Brown and Evan Downing from the AIxCC team Trail of Bits about their AIxCC final submisson. Trail of Bits discusses their experiences and insights from participating in the AIxCC competition. They discuss the dynamics of their team, the development of their Cyber Reasoning System (CRS) named Buttercup,...

01D - Team Atlanta's AIxCC Final Submission 22.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with Taesoo Kim, Minwoo Baek, HyungSeok Han, and Hanqing Zhao from the AIxCC Team Atlanta about their AIxCC final submisson. Team Atlanta discusses their experiences and strategies in the AIxCC. They discuss team dynamics, communication methods, and the structure of their Cyber Reasoning System, which includes multi...

01C - LACROSSE's AIxCC Final Submission 17.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with David Musliner, Mike Pelican, and Matt McLure from team LACROSSE from SIFT on their AIxCC submission. The conversation covers the team’s background, their experiences in previous competitions, and the architecture of their Cyber Reasoning System (CRS). They discuss the implications of open-sourcing their system...

01B - Theori's AIxCC Final Submission 15.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with returning guests Tyler and Tim from team Theori on their AIxCC submission. The Theori team discusses their participation in the AI Cyber Challenge, detailing their unique approach to building a Cyber Reasoning System (CRS) named RoboDuck. The conversation covers the team’s structure, motivation, and the challen...

01A - 42-b3yond-6ug's AIxCC Final Submission 10.07.2025

Youtube Video of podcast Shownotes and Links In this episode adamd and Zardus chat with Xinyu, Dang, Ziyi, and Xinqian from the AIxCC team 42-b3yond-6ug. The team highlights the importance of stability, testing, and collaboration. They share insights on their cyber reasoning system, fuzzing strategies, and the impact of AI models on their work. The team reflects on their experiences, lessons learn...

019 - Shellphish's final AIxCC Submission with clasm and honululu 08.07.2025

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus discuss the final submission of the AI Cyber Challenge for Shellphish with clasm and honululu . They explore the evolution of the team, the significance of the challenge, and the role of AI in cybersecurity. We discuss the history of DARPA’s cyber challenges, the financial stakes involved, and the collabor...

018 - AIxCC and ARTIPHISHELL with Shellphish's clasm and honululu 13.08.2024

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus do a live-from-DEF CON interview with clasm and honululu , the co-captains of the Shellphish AIxCC team. They talk about their approach to the AIxCC qualification competition and their cyber reasoning system ARTIPHISHELL. Finally, we finish with live footage of Shellphish when the seven $2M winning qualify...

017 - Highs and Lows of Shellphish 18.06.2024

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus talk about the highs (winning $1 million in the AIxCC Small Business Track ) and the lows (failing to qualify for DEF CON CTF 2024 ) of Shellphish . Links AIxCC Shellphish Shellphish Support Syndicate Shellphish AIxCC Team pwn.college

016 - Live from DEF CON 31 CTF 15.08.2023

Youtube Video of podcast Shownotes and Links In this unique episode of CTF Radiooo adamd and Zardus chronicle their adventures while playing Nautilus Institute ’s DEF CON 31 CTF, all the way from the Friday night before the CTF to early Monday morning leaving to catch a flight. Throughout this episode we talk about the CTF as we’re experiencing it (from a hot tub?!?!), and we catch up with several...

015 - LiveCTF 07.08.2023

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus chat with psifertex, glenns, and negasora from LiveCTF ! We talk about LiveCTF competitions in DEF CON CTF Finals 2022 and DEF CON CTF Quals 2023 ! We also chat about the history of LiveCTF, spectating CTF, the difficulty in creating a challenge at the appropriate difficult level for a spectated CTF, and m...

014 - Who's Exploit is it Anyway? 01.08.2023

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus chat about a challenging issue facing the CTF community: if someone finds or uses a 0-day vulnerability in a CTF, what happens? We talk about 0-days, 0-days in CTF, and the complications that arise. Links

013 - Chatting with r3kapig 25.07.2023

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus chat with anciety , atum , mmmxny, and crazyman of r3kapig : one half of the CTF team P1G BuT S4D! We talk about how the members got into CTFs, how the team gets new members, what is the culture of the team, why do we play CTFs, can we keep playing CTFs?, what makes a good CTF challenge, and (what else) pw...

012 - Chatting with Straw Hat 17.07.2023

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus chat with q7, publicqi, Yuhang Wu, and shiki7 of the CTF team Straw Hat! Links Tweet re: CTF team mergers Straw Hat website

011 - We're Back: DEF CON CTF Quals 2023 12.06.2023

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus chat about keyboards, DEF CON CTF Quals 2023, CTF team mergers, and how Shellphish has qualified for DEF CON CTF for 20 years! Links Tweet re: CTF team mergers The infamous monitor

010 - Legit BS History with Dustin and Vito 12.11.2021

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus are joined by special guests: Dustin and Vito from Legitimate Business Syndicate , hosts of DEF CON CTF from 2013–2017. We chat about how Dustin and Vito got into CTFs, their first CTF experience, how DEF CON CTF has changed, and their experiences hosting DEF CON CTF. Links DEF CON Call for Organizers Legi...

00F - OOO Retires! 19.10.2021

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus talk about a major update: Order of the Overflow has retired from hosting DEF CON CTF, after four years at the helm. They talk about what it was like to host, and why YOU should consider hosting DEF CON CTF. Links DEF CON Call for Organizers

00E - Season Two Premiere 01.04.2021

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus kick off the second season of CTF Radiooo. We reflect on the progress of pwn.college and the challenges of incentivizing students to find and exploit real bugs. Links pwn.college

00D - Season One Finale 02.12.2020

Youtube Video of podcast Shownotes and Links In this episode of CTF Radiooo adamd and Zardus recap the first “season” of CTF Radiooo (yes, we’re calling them seasons now). We reflect on a fun first season, discuss some of our favorite moments/episodes, and talk about future plans for the pod. Links CTF Player discord server , started by our friend ZetaTwo

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