Clear DefinitionsMultisig Wallet Audit
1 min read
Pronunciation
[mul-tee-sig waw-let aw-dit]
Analogy
Like inspecting a vault that requires multiple keys, verifying that each lock functions correctly and the override procedures are secure.
Definition
A security assessment of multisig wallet smart contracts, reviewing threshold logic, signer management, upgrade pathways, and integration with hardware or software signers.
Key Points Intro
Multisig wallet audits validate robust co‑signer contract logic and upgrade safety.
Key Points
Threshold enforcement: Verifies correct m-of-n checks.
Ownership changes: Reviews add/remove signer and threshold-adjust logic.
Replay protection: Ensures signatures cannot be reused maliciously.
Integration: Tests compatibility with hardware signing workflows.
Example
An audit of a 4-of-6 Gnosis Safe instance includes fuzzing signature aggregation, testing owner replacement, and verifying timelock enforcement.
Technical Deep Dive
Auditors use symbolic execution (MythX) and property-based tests to validate `checkSignatures()`, `execTransaction()`, and upgrade functions. They review on‑chain upgrade modules and off‑chain PSBT tooling.
Security Warning
Misconfigured threshold or recovery logic can lock funds irreversibly; ensure fail‑safe paths are tested.
Caveat
Audit does not cover physical key management; combine with procedural review.
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