A close friend told me about revoke cash, he said I can use this platform to cut off access that's been given to a dex or other platforms after trading, I want to understand how this works, I insert my eth address and saw that few tokens has allowance in front of them like.
You can use that website
https://app.unrekt.net/ to Find & revoke all the addresses that can spend your tokens.
It is a solution at the end but at start you can be more careful when giving any rights, allowance to any smart contracts, addresses that can spend your tokens. If you want to explore any website, any new project, any smart contract, consider to use an empty wallet for that.
If you use a wallet that has funds inside, maybe you will lose your tokens before you are able to use the Unrekt website.
Smart Contract interaction, risk and liabilities