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If you approved a token-spending request, revoke that allowance on the same network using your wallet’s approval tools or a trusted block-explorer checker. Disconnecting the site alone does not remove an on-chain allowance. First identify what you connected or signed: a wallet connection, a token approval, a message signature, and disclosure of your recovery phrase or private key require different responses.
What a token approval does—and what disconnecting does not do
A wallet connection lets a site request interactions from your wallet; it is not itself the same as granting a token allowance. An allowance authorizes a particular smart-contract address, called the spender, to use a specified token on a particular network. Disconnecting a dapp ends the connection, but does not cancel an allowance already recorded on-chain. MetaMask explains this distinction in its allowance and disconnection guidance.
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Not every visit or connection creates an approval. Check your wallet activity and approvals before assuming one exists. An allowance checker focuses on token permissions; it should not be treated as a way to find every possible message signature or determine whether wallet credentials were exposed.
How do I revoke token approvals after interacting with a suspicious crypto site?
- Stop interacting with the site. Do not reconnect, sign additional requests, or enter a recovery phrase or private key into the site or a purported checker.
- Identify the wallet and network. Review the wallet activity to determine which account and chain were involved. An approval belongs to a token, spender, and network, so checking a different chain will not show that permission.
- Open a trusted approval interface. Use a wallet-native feature or the relevant network’s block-explorer approval checker. MetaMask documents Portfolio allowance management for Ethereum Mainnet, Polygon, and BNB Chain; its available routes and interface labels may change. Ethereum.org also points users to approval-checking options such as Revoke.cash and Etherscan. Confirm the current network coverage and carefully verify the site domain yourself before connecting a wallet.
- Review the allowance details. Check the token, spender address, network, and allowance amount where shown. Focus on permissions you do not recognize or no longer need. A recent or unfamiliar spender is a reason to investigate, not by itself proof that a site is malicious.
- Revoke only the permission you intend to remove. Select the revoke action for that approval, then inspect the wallet prompt before signing. A revocation is an on-chain transaction and requires gas on the network being used.
- Confirm the result. Wait for the transaction to confirm, then check its status in your wallet or on the relevant network’s explorer. A submitted transaction is not confirmed merely because you clicked the button.
Which approval checker should I use?
There is no single checker that covers every network or permission type. Use a tool only if it supports the network where the approval occurred, and review the details before authorizing a transaction.
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| Route | What the cited guidance establishes | What to verify |
|---|---|---|
| MetaMask Portfolio | MetaMask documents allowance review and revocation for Ethereum Mainnet, Polygon, and BNB Chain. | Confirm the current supported network and interface, and inspect the transaction prompt before signing. |
| Network block explorer | MetaMask points to network-specific approval checkers, including Etherscan, BscScan, and Polygonscan. | Use the explorer for the exact chain and verify its domain independently. |
| Revoke.cash | Its guidance describes searching by address or connecting a wallet, choosing a network, and reviewing approvals. | Confirm network and approval coverage, verify the domain, and review spender and allowance details yourself. |
These are available routes, not a ranking of security or completeness. Approval tools may support different networks and approval types. MetaMask’s instructions are in its Help Center; Ethereum.org’s guidance includes its security resources and token access guide; Revoke.cash provides its approval-revocation instructions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What revoking can—and cannot—fix
A successful revocation limits future use of the specific allowance you removed. It does not reverse a transfer that already completed, retrieve stolen assets, or cancel unrelated permissions. If tokens have already moved, revoking afterward cannot bring them back.
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If you revealed your recovery phrase or private key, treat that as a wallet-compromise incident rather than an approval-cleanup task. Revoking allowances alone cannot secure a wallet whose credentials are exposed. Follow current official guidance from your wallet provider; do not enter the exposed secret into a checker or the suspicious site. A message signature is also distinct from a token allowance, so an allowance checker cannot establish that every signed request has been neutralized.
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