So you hear quite often how important it is to revoke permissions on ERC20's incase exploits/rogue contracts steal your funds. But how does it work - if I gave a permission 12 months ago to some app for Unlimited USDC, can they actually initiate a transaction with my funds today without me signing or initiating anything? (address is on a ledger)? Or Is it only the case that they can spend unlimited IF I today initiate and sign a transaction for 10 USDC, they can exploit by spending all the USDC?
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