DeFi developers face personal liability under US law after CFTC v. Ooki DAO. Learn the federal and state theories of liability protocol builders must understand in 2026.
The CFTC is moving toward formal rulemaking to protect non-custodial software developers from broker registration — what DeFi builders and their counsel need to know.
Liability never attaches to bytecode — it attaches to whoever holds control, and US enforcers have four distinct theories for finding them. This follow-up analysis maps DeFi’s five-layer liability stack against CFTC v. Ooki DAO, Van Loon v. Treasury, SEC v. Rari Capital, and the general partnership rulings in Sarcuni v. bZx DAO and Samuels v. Lido DAO. Includes a layer-by-layer risk assessment and seven concrete mitigations for protocol builders.
CFTC Chair Selig says the agency will write crypto market structure rules if CLARITY fails. What CEA authority it actually has — and where it stops.
Uniswap v4’s hook architecture moves regulatory risk from the AMM to the developer who writes the callback — and the analysis turns on custody, discretion, and revenue. This deep dive maps hook archetypes against FinCEN money transmission rules, CFTC leverage enforcement, Howey, and OFAC obligations, drawing on Risley v. Universal Navigation, the Opyn/ZeroEx/Deridex settlements, Van Loon v. Treasury, and the 2025 Storm verdict. Includes a hook-by-hook risk matrix and nine practical rules for builders.
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