Check and Revoke your smart contract approvals ASAP

During the last 2 years, I have approved many smart contracts while moving my funds. Today I thought it was time to check my approved smart contracts and you should too. Nearly all my approvals were for unlimited amounts. Due to the fact that I am not doing much defi rn I revoked all my approvals just to be better safe than sorry.

You should at least check your approvals too and possibly revoke them. The reason for that is that one might have accidentally approved a malicious contract that is only waiting for a certain amount of funds to steal or some hacker might find a bug in a good-behaving contract that can be exploited. I am repeating myself here: Be better safe than sorry!

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Here are the links to the sites where you can check and revoke your approvals for many chains:

BSC: https://bscscan.com/tokenapprovalchecker

ETH: https://etherscan.io/tokenapprovalchecker

Polygon: https://polygonscan.com/tokenapprovalchecker

ETH Optimistic Rollups:
Arbitrum One: https://arbiscan.io/tokenapprovalchecker
Arbitrum Nova: https://nova.arbiscan.io/tokenapprovalchecker
Optimism: https://optimistic.etherscan.io/tokenapprovalchecker
Boba: https://bobascan.com/tokenapprovalchecker

AVAX: https://snowtrace.io/tokenapprovalchecker

FTM: https://ftmscan.com/tokenapprovalchecker

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3rd-party solutions: (use with care, I did not check/try them)

https://app.unrekt.net/

https://debank.com/

https://v3app.everrise.com/everrevoke/

https://revoke.cash/

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Please, if you know similar sites for further smart contract platforms provide them in the comments and I will add them to the list.

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Further advice:

Use different wallets for different purposes. So e.g. one wallet for defi that you sign contracts with, one for hodling that never has any signed contracts.

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edit 1: Added "3rd-party solutions".

edit 2: Added "Further advice".

edit 3: Added "Arbitrum Nova"

edit 4: Added "Fantom FTM"