How Multi-Sig Works

🔐 How Multi-Sig Works

More signers = more safety. And that’s built into every Vault.

Most wallets use a single private key to approve every transaction. Lose that key? You lose everything. Get hacked? You lose everything. Click the wrong link? You guessed it — gone.

Locked Money does things differently.

Every Vault is multi-signature by default — meaning it takes more than one approval to move your assets.

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🧠 What Is Multi-Sig?

Multi-signature (multi-sig) is like a two-step approval process for crypto. Instead of just one wallet signing a transaction, your Vault can require multiple — like needing 2 out of 3 signers to approve.

This way:

• If one device is lost, your assets are still safe

• If a signer is compromised, they can’t act alone

• You stay in control — and attackers stay locked out

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🔑 How It Works in Locked Money

When creating your Vault, you can choose your signer setup:

• Single signer (not recommended)

• 2-of-2 (default for many users)

• Custom setups like 2-of-3 or 3-of-5 for advanced use cases

Each signer can be:

• A wallet you control (MetaMask, Rabby, hardware wallet, etc.)

• A trusted co-signer (e.g. a teammate, assistant, or cold wallet)

• Your AI Co-Signer (Free Plan) — which acts like a smart guardian, blocking risky transactions

Need more signers later? You can add or remove them anytime — securely.

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🔄 Example: How a Transaction Works

Let’s say your Vault requires 2-of-2 signers.

• You create a transaction inside your Vault

• You sign it with Wallet A

• The transaction now waits for Wallet B

• Once both signers approve, the transaction executes

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🛡️ Why It’s Safer Than Seed Phrases

• No seed phrase to lose or leak

• No need to write anything down

• No single key that unlocks everything

• Signers can be spread across devices or locations

• Signer wallets can be swapped if one is lost

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🧩 Built for Flexibility

Whether you're a solo user or managing a company treasury:

• Set simple 1-of-2 signers for quick security

• Or go full 3-of-5 for serious asset protection

• Add or remove signers anytime

• Include the AI Co-Signer (Free Plan) for added protection

Your Vault, your rules — always in your control.

💬 Recommended for Maximum Protection

To get the full benefits of Locked Money's multi-sig security, we highly recommend:

• Adding at least two wallets when creating your Vault (Otherwise, it behaves like a single-signer setup — and you lose the protection multi-sig provides.)

• Using more than two signers if possible, to guard against loss of access. (Example: 2-of-3 setup — even if one wallet is lost, you stay safe.)

For the ultimate security experience, we recommend using our official partner: Tangem x Locked Money hardware wallets. These card-style cold wallets offer seedless, tamper-proof protection — perfect for acting as one of your Vault signers.

With proper multi-signature setup and trusted devices, your assets stay truly locked, protected, and under your full control.