---
title: "Tether's USDT0 Protocol Reveals Security Architecture Details"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/285834626.md"
description: "Tether's USDT0 protocol has revealed its security architecture details after the Kelp incident. It utilizes a Decentralized Verification Network (DVN) requiring consensus from three independent validators for cross-chain message settlement. Current verification nodes include USDT0's DVN, LayerZero, and Canary, with plans for further expansion. All multi-signature transactions are reviewed by internal and external teams, and contracts have been audited by Guardian and OpenZeppelin, as part of a $6 million bug bounty program on Immunefi."
datetime: "2026-05-10T08:23:43.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/285834626.md)
  - [en](https://longbridge.com/en/news/285834626.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/285834626.md)
---

# Tether's USDT0 Protocol Reveals Security Architecture Details

Tether's asset interoperability protocol, USDT0, has disclosed details of its security architecture following the Kelp security incident. According to Odaily, the system currently employs a proprietary Decentralized Verification Network (DVN) with message veto power. It requires consensus from three independent validators using different codebases to achieve a 3/3 agreement before cross-chain messages can be settled. The current verification nodes include USDT0's proprietary DVN, LayerZero, and Canary, with plans to expand to 4/4 and 5/5 verification mechanisms. USDT0 also stated that all multi-signature transactions undergo multiple reviews by internal teams, external security teams, and auditing firms before signing. The relevant contracts have been audited by Guardian and OpenZeppelin and are part of a $6 million bug bounty program on Immunefi.

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