{
 "license": "CC-BY-4.0",
 "attribution": "Fide AI, Agentic Cyber Explorer",
 "url": "https://agentic-cyber-explorer.pages.dev/events/darpa-aixcc-launch-2023/",
 "asOf": "2026-09-26",
 "id": "darpa-aixcc-launch-2023",
 "date": "2023-08-09",
 "datePrecision": "day",
 "title": "DARPA launches the AI Cyber Challenge to build AI systems that find and fix open-source vulnerabilities",
 "lane": "defense",
 "kind": "competition",
 "summary": "At Black Hat USA 2023, DARPA announced the AI Cyber Challenge (AIxCC), a two-year competition to build AI-driven systems that automatically find and fix vulnerabilities in critical open-source software. Anthropic, Google, Microsoft and OpenAI agreed to provide technology and expertise to competitors, OpenSSF served as challenge advisor, and semifinal and final rounds were scheduled for DEF CON 2024 and 2025.",
 "whyItMatters": "AIxCC became a large public test of LLM-based cyber reasoning systems for defensive vulnerability discovery and repair.",
 "actors": [
  "darpa",
  "anthropic",
  "google",
  "microsoft",
  "openai",
  "openssf"
 ],
 "topics": [
  "vulnerability-discovery",
  "vulnerability-repair",
  "autonomous-defense"
 ],
 "atlas": [
  "eval-environment"
 ],
 "artifacts": [
  "aixcc"
 ],
 "sources": [
  {
   "url": "https://www.darpa.mil/news/2023/ai-cyber-challenge-software",
   "publisher": "DARPA",
   "title": "DARPA AI Cyber Challenge Aims to Secure Nation's Most Critical Software",
   "date": "2023-08-09",
   "type": "primary",
   "accessed": "2026-09-25"
  }
 ],
 "keyFacts": [
  {
   "fact": "DARPA described AIxCC as a two-year competition with a Funded Track (up to seven small businesses) and an Open Track.",
   "locator": "DARPA news release, paragraph on tracks"
  },
  {
   "fact": "Semifinal and final competitions were to be held at DEF CON in Las Vegas in 2024 and 2025.",
   "locator": "DARPA news release, closing paragraphs"
  }
 ],
 "significance": 3,
 "fideQuestions": [
  "FID-076",
  "FID-088"
 ],
 "methods": [
  "automated-patching"
 ],
 "review": "assistant-drafted",
 "addedOn": "2026-09-25"
}