

def/acc hackathon - nyc
Join us at NYC Hub for the def/acc Hackathon!
‼ Important ‼:
This event is to register for the in-person venue ONLY - if you will not be in NYC for this hackathon, please use the link below, as we have limited space and want to make sure we have enough room for everyone.
Regardless of where you are, please make sure to sign up for the hackathon itself here!
Sponsored by Halcyon Futures.
Halcyon identifies leaders from business, policy, and academia, and helps them build a secure and resilient world for the era of transformative artificial intelligence.
The Problem
Offensive AI capabilities spread in seconds.
Our defenses take years.
A single bio student with some compute can now explore dangerous pathogen designs. Automated tools find software vulnerabilities faster than we can patch them. This asymmetry is accelerating.
But it’s not too late to flip the script.
enter def/acc - accelerate defensive technologies to make sure humanity reaches a glorious future.
What We’re Building
You’ll build prototypes—or full end-to-end defensive systems—with immediate, real-world applications across three tracks:
🦠 Biosecurity Track
Environmental pathogen surveillance
DNA synthesis screening
Early warning systems to prevent the next pandemic
🛡️ Cybersecurity Track
AI red-teaming for UK critical infrastructure
Automated vulnerability assessment
Memory-safe refactoring (C++ → Rust)
🤖 AI Control & Monitoring Track
Trusted models supervising untrusted ones
Coordination tools for the UK AI Safety Institute
Privacy-preserving threat intelligence systems
❓ Another Defensive Gap not listed!
🏆 Prizes & Opportunities
$10,000 prize pool
Fully-funded spot in Bluedot’s December Incubator Week (Dec 1–5) for the winning team
Guaranteed place in our AGI Strategy Course for anyone who submits a project
Intros and networking with funders, technical leaders, and decision-makers
Schedule
Friday, Nov 21
5:00 pm — Doors open
6:00 pm - Team formation
7:00 pm — Problem deep-dives with domain experts
9:00 pm — Hacking begins
Saturday, Nov 22
10:00 am — Doors open: hacking continues
1:00 pm — Expert office hours
6:00 pm — Progress check-ins
Late — Optional overnight hacking
Sunday, Nov 23
10:00 am — Doors open: final sprint!
3:00 pm — Submission deadline
4:00 pm — Demo session
6:00 pm — Winners announced
7:00 pm — Celebration
Who Should Come?
Engineers ready to build.
Researchers ready to implement.
Anyone who believes defensive technology is under-invested relative to its importance.
If you’re good, this can be your path to scale your solution into a real org.
What We Provide
Amenities:
High-quality workspace at the NYC Hub
Beverages and soft drinks!
Snacks + dinner (TBD)
Technical resources:
Mentorship & domain experts across biosecurity, cybersecurity, and AI control
$400 in API credits for every team (sign up required)
A community of builders committed to beneficial AI and societal resilience
Hosted By
Bluedot Impact - the leading talent accelerator for beneficial AI and societal defenses + Apart Research