Single-signature wallets authorize transactions with one private key. Multisig wallets require M-of-N approvals before execution. Neither is universally "best"—the right choice depends on asset value, team structure, and operational maturity.
Single-signature wallets
Best for: personal daily use, small balances, and speed-critical operations.
- Simpler setup and lower transaction friction
- Single point of failure if the key is compromised or lost
- Hardware wallets significantly improve single-sig security
Multisig wallets
Best for: treasuries, DAOs, protocol admin keys, and shared operational funds.
- Requires multiple independent signers—reduces insider and phishing blast radius
- More complex coordination; signer availability matters during incidents
- Signer set changes need documented procedures and timelocks
Common multisig configurations
- 2-of-3 for small teams with geographic distribution
- 3-of-5 or higher for treasuries with formal governance
- Hardware-backed signers for all production approvers
Operational reminders
Multisig does not help if all signers use the same compromised device or share seed phrases. Document signer roles, test recovery procedures with small transactions, and review signer lists after team changes.