In this final episode of our AI Cyber Challenge (#AIxCC) series, CRob and Jeff Diecks wrap-up the journey from DARPA's groundbreaking two-year competition to the exciting collaborative phase happening now.

🎧 https://openssf.org/podcast/2026/02/09/whats-in-the-soss-podcast-54-s3e6-aixcc-part-4-cyber-reasoning-systems-the-real-world-journey-after-aixcc/

AI is playing an increasing role in open source security.

Part of our #AIxCC series, @trailofbits shares lessons from DARPA’s challenge and how AI + fuzzing can deliver real results.

https://openssf.org/podcast/2026/02/09/whats-in-the-soss-podcast-53-s3e5-aixcc-part-3-buttercups-hybrid-approach-trail-of-bits-journey-to-second-place-in-aixcc/

New podcast 🎙️

How did the AI Cyber Challenge go from skepticism to success?

Start with AIxCC Part 1 – From Skepticism to Success and hear how #AIxCC reshaped thinking around AI + cybersecurity.

Part 1 kicks off a 4-episode series: https://openssf.org/podcast/2026/02/09/whats-in-the-soss-podcast-51-s3e3-aixcc-part-1-from-skepticism-to-success-the-ai-cyber-challenge-aixcc-with-andrew-carney/

The interactive repo visualizer we made for exploring the scale & detail of #AIxCC challenges just went live on the archive site: https://archive.aicyberchallenge.com/repoviz/

AFAIK, this is the only way currently to see some of the details (like actual code diffs) of the vulnerabilities added for competitors to find.

This was an interesting challenge to design because we wanted it to be visually engaging & interactive, technically honest, and appeal to both security newcomers and experts.

If you find this sort of thing interesting, pass it on!

Fun writeup by #Theori exploring traces in their cyber reasoning system for #aixcc

https://theori.io/blog/exploring-traces-63950

W00t! The #aixcc stage talks recently dropped: https://aicyberchallenge.com/def-con-33/

I was on the "The Challenge with Designing the Challenging Challenges" panel. Many thanks to my colleagues and fellow panelists!

#defcon #defcon33

Really fantastic #HackerHangout with #ShellPhish talking about their cyber-reasoning system (CRS) for #AIxCC

#defcon #defcon33

https://www.youtube.com/watch?v=PiJwIUGJGmw

🚨 AI Tools That Patch Code in Minutes, Not Weeks

At DEF CON 2025, DARPA’s AI Cyber Challenge unveiled open-source tools that can detect and fix software vulnerabilities in record time — a breakthrough that could safeguard hospitals, water systems, and more. 🏥💧💻

👉 Do you think AI is the ultimate solution for cybersecurity, or just one piece of the puzzle? Drop your thoughts below!

#AIinCybersecurity #DARPAChallenge #DEFCON2025 #CyberDefense #CriticalInfrastructure #BugBountyAI #AIxCC #Neuronus