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Security Level 5

Develops frontier AI security standards

Overview

SL5 Task Force is a nonprofit that develops practical security standards to protect frontier AI from nation-state threats. It creates the SL5 Standard, an overlay to existing frameworks (like NIST SP 800-53 and ICD 705) that provides technical controls and implementation guidance, delivered through two tracks: an Executive Track for decision-makers and a Technical Track for security researchers, with working groups on machine, network, physical, personnel, and supply chain security. The organization differentiates itself through a multistakeholder approach that includes AI labs, national security leaders, data center operators, and chip providers, and by offering an actionable roadmap that bridges current practices with higher-security measures and threat modeling, prototyping, and cost-benefit analyses (e.g., Project MoAT and AI705). Its goal is to achieve nation-state grade protection for frontier AI and to build a functional prototype datacenter with leading AI labs by 2026.

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About Security Level 5

Simplify's Rating
Why Security Level 5 is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

ConsultingGovernment & Public SectorCybersecurityAI & Machine Learning

Company Size

1-10

Company Stage

N/A

Total Funding

N/A

Headquarters

N/A

Founded

N/A

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Simplify's Take

What believers are saying

  • NIST's July 2026 workshop featured SL5 and AI705, signaling institutional traction.
  • SL5 is hiring across engineering, national security, and recruiting, showing rapid scaling.
  • The standard's 2028/2029 optionality framing aligns with urgent frontier-lab procurement cycles.

What critics are saying

  • SL5 has only four employees on Built In, limiting execution capacity.
  • The 2027 datacenter build needs labs, chips, and facilities alignment before competitors move.
  • If frontier labs reject SL5, the nonprofit becomes a standards paper without deployment.

What makes Security Level 5 unique

  • SL5 published a 60-control standard, anchored in NIST SP 800-53 and ICD 705.
  • Lisa Thiergart leads a rare cross-functional team spanning labs, government, and datacenter operators.
  • SL5 targets nation-state-grade AI infrastructure, not generic enterprise cybersecurity.

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