Overview
IBC-Go v10.1.x introduces the IBC v2 protocol along with several major features that have undergone comprehensive security audits by leading blockchain security firms. These audits ensure the security and reliability of the simplified IBC v2 protocol, channel upgrades, enhanced token transfers, WASM light clients, and interchain accounts.Available Audit Reports
IBC v2 Protocol Audit
Auditor: Collaborative Audit Team Completion Date: April 2025 Pages: 74 Audited Commit:79218a531e769bb5c29022d50ef017bd81e4bd9b
Scope: IBC v2 protocol implementation (v10.x line)
This comprehensive audit covers the IBC v2 protocol implementation introduced in the v10.x release line. IBC v2 simplifies the IBC protocol by removing channel and connection handshakes, minimizing the application interface, and enabling connectivity with new domains like Ethereum while maintaining backward compatibility.
IBC v2 Protocol Audit Report
Complete security assessment of IBC v2 protocol implementation (74 pages)
Channel Upgrades (ICS-04)
Auditor: Atredis Partners Completion Date: March 2024 Version: Report v1.1 Pages: 38 This audit focused on the channel upgrade capability, allowing existing IBC channels to be upgraded with new features or parameters without losing state or requiring channel closure.Channel Upgrades Audit Report
Security assessment of IBC channel upgrade functionality (38 pages)
Token Transfer v2 (ICS-20)
Auditor: Atredis Partners Completion Date: February 2024 Pages: 41 This audit covers the enhanced token transfer features in ICS-20 v2, including improved metadata handling, fee middleware integration, and transfer authorization mechanisms.ICS-20 v2 Audit Report
Security assessment of ICS-20 v2 token transfer features (41 pages)
WASM Light Clients (ICS-08)
Auditor: Halborn & Ethan Frey Completion Date: January 2024 Pages: Multiple reports This comprehensive audit covers the WASM light client implementation, enabling smart contract-based light clients for enhanced flexibility and upgradability.WASM Light Client Audit (Halborn)
Halborn security audit of WASM light client implementation
WASM Light Client Review (Ethan Frey)
Independent technical review by Ethan Frey
Interchain Accounts (ICS-27)
Auditor: Trail of Bits Completion Date: 2023 Pages: Final Report This audit examined the interchain accounts module, enabling accounts on one chain to be controlled by another chain through IBC.Interchain Accounts Audit Report
Trail of Bits security audit of interchain accounts functionality