According to Huoxing Finance, following the Kelp security incident, Tether’s asset interoperability protocol, USDT0, has disclosed details of its security architecture. It states that the current system employs a proprietary DVN (Decentralized Verification Network) with message veto power and requires three independent validators, each operating on distinct codebases, to reach a 3/3 consensus before cross-chain messages can be settled. Current verification nodes include USDT0’s proprietary DVN, LayerZero, and Canary, with future plans to expand to 4/4 and 5/5 validation mechanisms. USDT0 also notes that all multisig transactions undergo multiple layers of review by internal teams, external security teams, and auditing firms before signatures are submitted. The relevant contracts have been audited by institutions such as Guardian and OpenZeppelin and are covered by a $6 million bug bounty program on Immunefi.
USDT0 Discloses Security Architecture with 3/3 Validator Mechanism and $6M Bug Bounty
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Summary
Following a recent security incident, USDT0 has disclosed its protocol update and security architecture. The protocol employs a 3/3 validator mechanism with message veto rights, requiring consensus from three independent validators using distinct codebases. The validators include USDT0’s DVN, LayerZero, and Canary, with future plans to expand to 4/4 and 5/5. All multisignature transactions undergo internal, external, and third-party audit firm reviews. The smart contracts have been audited by Guardian and OpenZeppelin, and a $6 million bug bounty program is now live on Immunefi.
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