token-allowance-checker VS revoke.cash

AFAIR for swapping ETH to USDC you don't need to do anything before. The other way around (USDC to ETH) I think you need to give an allowance for the dex to use your USDC so it can swap it back to ETH. You can later remove these allowances on https://tac.dappstar.io or https://revoke.cash

u/Dynamixznft hey bro i got rugged for $40k in similar scam. You need to go to, https://tac.dappstar.io in your wallet browser, link it and it should show you that they have authority to withdraw unlimited amount. You need to set these to $0 ASAP ASAP!!!

That is the problem I don't understand how to solve. I'll look at tac.dappstar.io

You can also revoke access after you are done with something like https://revoke.cash or https://tac.dappstar.io

I believe so. There's a number of them you can use like https://revoke.cash/ and https://tac.dappstar.io/. Full disclosure... I've not used used any of them, but they were recommended when I was looking into it a while back.

To kill the Smart Contract use https://tac.dappstar.io/

2 . https://tac.dappstar.io/

FWIW, I'd also revoke this contract spending approval, since you have a significant amount of USDC sitting on your wallet that could be moved by a malicious actor if that smart contract is exploited. I typically use Revoke.cash for this. It's also open source In the future, it's best practice to only approve the amount that you need, though I don't know if that's possible going through ledger live. MetaMask let's you edit the approval amount before you send the transaction, so that's typically what I do.