Easily "revoke" authorization through Debank to prevent contract vulnerabilities and safeguard asset security.

With the rise of the NFT market, more and more newcomers in the cryptocurrency industry are starting to learn how to use cryptocurrency wallets. However, scams are rampant in the crypto industry, and newbies may suffer asset losses due to authorizing malicious websites. Today, we will demonstrate using the popular DeFi wallet "Debank" to show everyone how to revoke authorization for various Dapps and safeguard asset security.

Dapp Authorization Risk

When users use Dapps in the world of blockchain, whether it's for NFT transactions, DeFi applications, or blockchain games, they need to authorize the Dapp to operate tokens on behalf of the user. In order to enhance user experience and avoid frequent authorization requests, these Dapps usually ask for "infinite authorization" from users at the beginning.

However, infinite authorization has its drawbacks. When there are vulnerabilities in the smart contracts behind the authorization platform, hackers may exploit these vulnerabilities to threaten user assets. Therefore, timely revocation of these authorizations after platform usage will help enhance user security.

Authorization Revoke

To revoke authorization of smart contracts, assistance from a third-party platform is usually required. This article will demonstrate using the all-in-one DeFi wallet "Debank," which supports revoking contracts on up to 19 blockchains, making it very convenient.

Upon entering the Debank website and connecting your wallet, click on the personal profile in the right-side options bar to view the contract authorizations on various blockchains under "Approval."

Below is an example of infinite authorization for using Cake tokens on Biswap Dex on the BSC Binance Smart Chain. To revoke this authorization, click on "Decline" on the far right.

After clicking, a confirmation screen will appear. Once confirmed, the previously granted infinite authorization of Cake tokens to the Biswap platform will be changed to 0 Cake. This means that Biswap will no longer be able to access the user's Cake tokens in the approved amount highlighted in red.

Revoking authorizations can help reduce threats from malicious websites and further protect asset security. However, each revocation incurs a transaction fee, so it is recommended that readers evaluate this aspect when initially using a website.