Security Audits
This page documents the various third-party security audits conducted on Threshold Network components, including tBTC bridge, staking contracts, the vending machines, thUSD, and integrations.
Protocol Upgrades
Defense by Thesis - Gasless Minting Feature for the Threshold App
Date: 31 Oct 2025
Report: View PDF
Scope: NativeBTCDepositor contract
Defense by Thesis - Beta Staker Allowlist & Bridge Fee Rebates
Date: 16 Sept 2025
Report: View PDF
Cross-Chain Integrations
Certora - Threshold CCIP Update
Date: 25 Sept 2025
Report: View PDF
Scope: Threshold CCIP Update
MixBytes() - Cross-Chain Redemptions
Date: 08 Sept 2025
Report: View PDF
Scope: Cross-chain bridge transfers
Zellic – Sui Integration (tBTC)
Date: 01 May 2025
Report: View PDF
Scope: tBTC integration with the Sui blockchain
Hashlock – Starknet Integration (tBTC)
Date: April 2025
Report: View PDF
Scope: tBTC integration with the StarkNet blockchain
Thesis Defense – Base Integration (tBTC)
Date: April 11th, 2024
Report: View PDF
Scope: tBTC integration with the Base blockchain
tBTC Bridge Audits
Thesis Defense – T Staking Rebates for tBTC
Date: 27 November 2025
Report: View Audit 1 PDF - View Audit 2 PDF
Scope: Smart contracts for T staking rebates
Least Authority – Solana Smart Contracts (tBTC)
Date: 29 August 2023
Report: View Audit PDF - Link to Least Authority
Scope: Smart contracts for the tBTC Bridge on Solana
Least Authority – tBTC Bridge
Date: 29 September 2022
Report: View Audit PDF - Link to Least Authority
Scope: Security audit of the core tBTC Bridge contracts
T Vending Machine Audits
CertiK – Vending Machine
Date: 19 November 2021
Report: View Audit PDF - Link to CertiK
Scope: Vending machine security audit
ChainSecurity – Staking, T Token, and Vending Machine
Date: 09 November 2021
Report: View Audit PDF - Link to ChainSecurity
Scope: Staking contracts, T token logic, and vending machine mechanisms
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