Burner Wallets and When to Use Them

A burner wallet is a separate wallet with a small balance, used for risky or unfamiliar activity. If something goes wrong, such as signing a malicious approval or connecting to a compromised site, only the burner's contents are at risk. Your main holdings stay in a wallet that never touches experimental apps.

It is one of the simplest security habits in crypto, and one of the most effective.

Why burners help

Most losses come from interactions: approvals, signatures and contract calls on sites that turn out to be malicious or vulnerable. You cannot remove every risky interaction from crypto use, especially if you like trying new apps, minting NFTs or joining airdrops. You can control what is exposed when you take those risks.

A burner wallet turns a potential total loss into a limited one.

When to use a burner

Burners fit many situations:

Activity	Why a burner helps
Minting new NFT collections	Mint sites are frequent phishing targets
Trying new or unaudited dApps	Contracts may have bugs or malicious functions
Claiming airdrops	Claim pages attract fake copies
Connecting to games and social apps	Many permissions and signatures
Testing a new chain or bridge	Unfamiliar interfaces increase mistakes
Attending events with QR code interactions	Scanning unknown codes

For routine, well-known activities with established apps, a regular hot wallet may be fine. For anything new, use a burner.

Setting up a burner

1. Create a new wallet, ideally in a separate browser profile
2. Record its seed phrase securely, even though the balance will be small
3. Fund it with only what you need for the planned activity plus gas
4. Label it clearly in your wallet so you do not confuse it with your main wallet
5. Avoid linking it to your ENS name or public identity unless you intend to

Some people keep a few burners for different purposes, such as one for mints and one for DeFi experiments.

Moving funds safely

The transfer between wallets is where mistakes happen:

• Send funds from your main wallet to the burner using a saved, verified address
• Never approve contracts from your main wallet on the site you plan to use with the burner
• If the burner receives valuable assets, such as a rare NFT or airdrop, move them to secure storage promptly
• Do not reconnect your main wallet to the same risky sites afterward

Clean up regularly

Burners accumulate approvals and questionable tokens over time. Periodically:

• Revoke approvals using a trusted tool
• Move remaining value out
• Consider creating a fresh burner and abandoning the old one

Treat a burner as disposable. Its value lies in being expendable.

Limits of burner wallets

Burners do not solve everything:

1. Malware on your device can still reach your main wallet if it is on the same computer
2. Signing a transaction from your main wallet on a phishing site still causes losses
3. Address poisoning and social engineering target all wallets equally
4. Holding significant value in a burner defeats the purpose

Combine burners with hardware wallets for main funds, separate browser profiles and careful signing habits.

Burners for payments

Paying a merchant is usually a simple transfer, and a dedicated spending wallet with a modest balance is a sensible way to handle regular crypto payments. When you pay for a Proud Globe tile, for example, a spending wallet with enough USDC and a little gas is all you need, and your main holdings never have to connect to anything.