[ctx]ctxseccontext security: attacks on the harness and context layer of AI agents, plus exploited-now news, hunting and playbooks.

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official (OpenAI product pages, Nov 12, 2026); press coverage of the keynote linked

OpenAI launches Daybreak Red Team (agentic web-app pen testing, early access) and Daybreak Defense Factory (agents that turn findings into patches)

  • Before connecting repos: scope which repositories and findings the agents can read, and keep human review on every proposed patch, as OpenAI's own flow requires.
  • No pricing was given; Red Team access is by waitlist.

Sources: OpenAI: Daybreak Defense Factory · OpenAI: Cyber at the Frontier · OpenAI: Daybreak · The Register: OpenAI launches security products (Nov 12, 2026)