This is because token approvals often request unlimited access to your tokens. Unfortunately, token approvals are a common attack vector for both hackers and scammers: the former can sometimes locate and exploit vulnerabilities in a smart contract's code ( this happened to Wormhole, an Ethereum Solana bridge, for example) and the latter can occur through rugpulls. monthly-and weeding out any you're unhappy with. This is why it's a good idea to develop a habit of regularly checking your token approvals-e.g. The only problem is that this can quickly rack up a long list of token allowances, potentially making you vulnerable to hackers or scams. Look, we know how it is: there's always a new dapp to try. This means you need to pay gas fees for each revocation. Since token approvals are conducted on-chain, revoking the approval must also be on-chain. See our article for more information on how to do this. Use MetaMask to overwrite existing token approvals by sending a new approval transaction with the same token details and nonce as the previous approval.For example, Etherscan, BscScan and Polygonscan all have a token approval checker function. Head to the 'approval checker' section of the block explorer for the network you're using.The good news is there are several ways to keep track of your existing approvals and easily revoke them: See also: our Twitter thread covering the distinction between these two actions, and our article on token approvals. ![]() Revoking an approval/allowance means a dapp can no longer access the contents of your wallet and move them around.Disconnecting your wallet from a dapp involves cancelling permission for it to see your public address and your token balances, and, depending on what you originally consented to, stopping it from initiating transactions (although not executing them) and viewing past activity.It's easy to confuse these two processes, but they are fundamentally different: disconnecting apps: what's the difference?
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