Shield3

Shield3 is a security provider for Web3 protocols and institutions, running threat modelling, incident response exercises and multisig audits as well as a policy engine delivered as a custom RPC. It addresses the absence of an interception layer before a transaction reaches the chain: once an application points its RPC at a Shield3 endpoint, the policy engine checks whether a recipient address is on the OFAC SDN list, has been flagged as a scam address by Chainalysis or Forta, touches an unverified contract, or exceeds a configured stablecoin transfer threshold; a hit can block, flag or trigger multi-factor verification.

On the institutional side, funds, banks and stablecoin issuers commission pre-investment or pre-integration security due diligence and control-surface analysis, and Shield3 is a founding member of the Security Alliance (SEAL) and sits on security councils for several protocols. Delivery is consultative, with a full engagement typically running four to six weeks, while the policy engine is a separate product consumed through an API.