Approval Check Tool

Check and deauthorize tool #

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Video tutorial

Direct link to deauthorization tool https://fatsale.org/#/token-tools/approve

Kind tips #

  1. If your assets have been stolen and suffered losses, please use a new wallet.

Parameter Description #

  1. How ​​to cancel authorization:
    • Currently Connected Wallet : Check the authorization record of currently connected wallet address, and you need to click confirm when submitting cancel authorization transaction
    • Private Key : You need to Import Wallet in Select Wallet, check the authorization record of the wallet you selected, and submit the transaction of Cancel Authorization without clicking Confirm
  2. Select public chain: Select the public chain you want to check authorization records
  3. Choose Wallet: This option will only be displayed when the private key method is selected

Steps #

  1. Connect the wallet or select the wallet you imported

  2. Click to start checking, patiently check

  3. Select the token you want to deauthorize in the authorization list

Frequently Asked Questions #

  • My USDT was stolen, I want to know how it was stolen?:

    • First find the hash of your USDT being transferred, and check a few points
      • Expand input data, if the displayed function name is transfer, the reason for the theft is private key disclosure
      • Expand input data, if the displayed function name is transferFrom, the reason for the theft is authorized malicious contract
      • Expand input data, if the above two items are not displayed, the reason for the theft is authorized malicious contract, and the perpetrator is very cautious and is very likely to be a repeat offender, you can check the log of the hash to find Address is USDT contract address and function name is the log record of Approval, and the address of topics is 2 is the malicious contract you inadvertently authorized

  • My BNB was stolen, why?:

    • If BNB is stolen, it is 100% because your private key has been leaked, please use a new wallet, and ensure that the environment and software you use are risk-free

  • My wallet has been used for half a year, why is he stealing my assets now?:

    • Maybe you participated in the IDO of some projects half a year ago, which caused you to inadvertently authorize some malicious contracts. If he immediately stole your assets at that time, it would definitely arouse your suspicion and vigilance, so this delay in committing crimes is not uncommon