The risk of Binance Wallet authorization depends on "what you sign." Signing in your Binance Wallet does not always mean transferring assets, but a malicious authorization can allow someone to drain your assets later at any time.
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Approval is a "pass" you grant to a contract or address, allowing it to move specific assets in your wallet. Binance Wallet itself is secure; the risk lies in whom you authorize — a legitimate DEX (like Uniswap) or a phishing site disguised as an airdrop claim.
Before signing any transaction or message, you need to check the following 4 items. Binance Wallet's newly launched "Safety Center" in February 2026 can automatically scan most of these risks for you.
Step 1: Distinguish Between "On-chain Transaction" and "Off-chain Signature"
[What to do]: Check whether the wallet pop-up asks you to "confirm a transfer/contract interaction" or to "sign a message."
[How to do]: When the request appears, look at the title or button on the wallet interface.
Scenario A: The interface shows "Contract Interaction," "Approval," "Swap," or "Transfer," and clearly displays a gas fee. → This is an on-chain transaction; signing will change the on-chain state and may alter or transfer assets. Action: Proceed to the next steps to check details.
Scenario B: The interface only shows "Sign," "Message Signature," or a "Sign" button without displaying a gas fee. → This is an off-chain message signature, which normally does not directly transfer assets. Action: You must read the message content. If it is an incomprehensible string of hex or gibberish, reject it immediately. This could be tricking you into signing a "Permit" off-chain authorization — an attacker can use the signature to authorize themselves to transfer your assets without on-chain traces.
[Completion criteria]: You have clearly identified the type of operation to be performed.
Step 2: Verify the "Approved Spender" and "Approval Amount"
[What to do]: Confirm which type of asset and what amount of approval you are granting to which address.
[How to do]: Check the specific contract address and approved amount in the pop-up.
Scenario A: The approved spender is a completely unknown address, or it is an EOA (Externally Owned Account, i.e., a regular wallet address). → High risk. Binance officially states that granting an EOA authorization is equivalent to giving control of your wallet assets to another wallet address, which is extremely dangerous. Action: Cancel immediately.
Scenario B: The approved spender is a verified contract of a well-known protocol (such as Uniswap or PancakeSwap) and the approval amount shows "Unlimited." → This is common in DeFi interactions, but it carries risk. Unlimited approval means the protocol can continuously access that token until you manually revoke it, even if the protocol is abandoned. Action: After approving, immediately go to "Safety Center" > "Approval Management" and change unlimited to a limited amount or revoke it directly.
[Completion criteria]: You have confirmed "to whom" and "how much."
High-risk warning: Approval phishing is currently one of the most common attack vectors in the crypto ecosystem. Attackers do not steal private keys; they only trick users into signing a seemingly ordinary "approval" or "verification" signature. Once confirmed, they gain unlimited control over specific assets in your wallet and can transfer them at any time, without your private key ever being compromised. Many links disguised as airdrop verification lead to permit authorizations after signing, and assets may be silently drained days later.
Step 3: Use "Safety Center" to Automatically Scan Authorization Risks
[What to do]: Use the built-in security tool in Binance Wallet to automatically detect existing approvals and the risk level of the current transaction.
[How to do]: Open Binance App → [Binance Wallet] → [Settings] → [Safety Center] → Tap [Scan Now]. The system automatically scans four dimensions: Wallet Security, Asset Security, Authorization Security, and Transaction Security.
Scenario A: Safety Center shows "High Risk" with alerts like "Suspicious Approval" or "Interacting with a Suspicious Address." → Stop the current operation immediately. Follow the Safety Center's suggestion to "Revoke Approval" to handle the risk. Action: Revoke first, then research whether the DApp you want to interact with is safe.
Scenario B: Safety Center shows "No Risk," but you are still unsure about the current transaction. → The security scan results are for reference only and do not constitute investment or financial advice. If you cannot understand the purpose of this transaction, do not sign.
[Completion criteria]: You have confirmed through the Safety Center that there are no high-risk lingering approvals in your wallet and have an intuitive judgment on the risk of the current transaction.
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Step 4: Verify After Signing and Clean Up Unnecessary Approvals
Common reason for failure: Mixing up "signature verification" and "approval transfer." Many users are tricked by "verify wallet to claim airdrop" prompts, sign a message, and believe that without paying gas there is no risk — but the signature was a Permit authorization. Off-chain message signatures normally do not move assets, but a malicious DApp can trick you into signing Permit or Permit2 type messages, granting them permission to operate your assets.
Verification method after operation: After completing the transaction or signing, return to [Safety Center] and tap [Scan Now] again. If the scan shows that this transaction is linked to a high-risk approval, immediately tap "Revoke." Ensure that the "Authorization Security" section displays a risk-free status.
Developing a habit: After every interaction with a new DApp, go to [Safety Center] and glance at the approval list. If you spot unfamiliar approvals or unnecessary "Unlimited" amounts, revoke with one tap. This check won't take more than 30 seconds. Verification channel: Binance Wallet [Settings] - [Safety Center] page.
