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Biosecurity Interventions

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Last edited:2026-02-06 (9 days ago)
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The EA/x-risk community funds and operates a portfolio of biosecurity interventions designed to reduce catastrophic biological risks—both from natural pandemics and from deliberate misuse of advancing biotechnology and AI capabilities. Open Philanthropy alone has directed $230M+ toward biosecurity through 140+ grants.1

These interventions are organized around Kevin Esvelt’s Delay, Detect, Defend framework, which structures biosecurity responses into three complementary layers: slowing dangerous capability proliferation, building early warning systems for novel threats, and developing resilience through countermeasures and physical defenses.


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  • Delay interventions buy time by slowing the proliferation of dangerous capabilities—through DNA synthesis screening, AI output restrictions, and governance frameworks like the Biological Weapons Convention.
  • Detect interventions build early warning systems. The most distinctive EA contribution here is untargeted metagenomic surveillance (sequencing all genetic material in wastewater samples), which can detect completely novel or engineered pathogens that would evade traditional PCR-based testing.
  • Defend interventions build resilience so societies can survive even if delay and detection fail. This includes medical countermeasures (platform vaccines, broad-spectrum antivirals), far-UVC pathogen inactivation technology, and improved PPE.

The framework treats these layers as complementary: restrictions buy time while detection and defense infrastructure scales up.


InterventionKey ActorsDescription
DNA Synthesis ScreeningSecureDNA, IBBIS/NTI, IGSCPreventing orders of synthetic DNA that could reconstruct dangerous pathogens. SecureDNA provides free cryptographic screening to synthesis providers.
Metagenomic SurveillanceSecureBio/NAO, CDCThe Nucleic Acid Observatory sequences all genetic material in wastewater to detect novel threats. CDC’s proposed Biothreat Radar ($52M) builds on this work.2
AI Bio-Capability EvaluationsSecureBio (VCT), Anthropic, OpenAI, RANDTesting whether AI systems can meaningfully assist bioweapon development, including the Virology Capabilities Test and red-team studies.3
Medical CountermeasuresRed Queen Bio, BARDA, CEPI”Defensive co-scaling”—pre-building countermeasures against AI-mapped biothreats. Platform vaccines and broad-spectrum antivirals.
Far-UVC & Physical DefensesBlueprint Biosecurity, Columbia UniversityFar-UVC light (222nm) inactivates 99.8% of airborne pathogens in occupied spaces. Blueprint runs the EXHALE evaluation program.4
AI Capability RestrictionsAnthropic (ASL-3), OpenAI, Google DeepMindOutput filtering and deployment restrictions for frontier AI models based on CBRN capability evaluations.
Biosecurity GovernanceNTI Bio, CSIS, Council on Strategic RisksStrengthening the BWC, policy research on AI-enabled bioterrorism, dual-use research oversight.5

OrganizationFocusKey Funding
SecureBioDelay/Detect/Defend framework; NAO; AI evals$9.4M+ from Open Philanthropy
SecureDNADNA synthesis screening technologySwiss foundation
IBBISInternational screening standardsOpen Philanthropy via NTI
Blueprint BiosecurityFar-UVC technology deployment$900K from Open Philanthropy (2024)
Red Queen BioAI-driven medical countermeasures$15M seed (OpenAI-led)
NTI BioBiosecurity governance, BWC$7.8M from Open Philanthropy
Centre for Long-Term ResilienceUK biosecurity policyEA-funded

For a full list, see the Biosecurity Organizations section under Organizations in the sidebar.



  1. Coefficient Giving — Biosecurity & Pandemic Preparedness Fund

  2. Biothreat Radar proposal

  3. VCT paper

  4. Blueprint Biosecurity far-UVC program

  5. CSIS 2025 report