Traditional procurement frameworks like SOC 2 and ISO 27001 are insufficient for vetting blockchain service providers, who introduce two distinct risk categories: vendor smart contract risk and infrastructure risk. The article outlines risk profiles for custody solutions, tokenization platforms, stablecoin issuers, and the underlying technology stack including L1/L2 networks, oracles, bridges, and DeFi protocols. It emphasizes the smart contract supply chain where client capital passes through multiple contracts, each an independent failure point. Incentive problems in the vendor market lead to inconsistent security baselines. The article proposes a Technical Risk Assessment framework with five domains: blockchain infrastructure, collateral/reserve, market/liquidity, operational control/key management, and smart contract security. Institutions must demand independent audits, recent audit timelines, and clear answers across these domains to avoid retaining deferred third-party risk.

Key facts

• SOC 2 and standard procurement miss blockchain-specific risks like smart contract flaws and infrastructure dependencies.
• Vendors include custody, tokenization, stablecoin issuers, each with distinct attack vectors.
• Smart contract supply chains create multiple interconnected failure points across different vendors.
• Incentive misalignment leads to inconsistent security baselines among early-stage blockchain vendors.
• A five-domain Technical Risk Assessment framework is proposed for onchain due diligence.

KeyAudit data perspective