Lately, checking the mempool feels just like watching the weather radar—when the wind picks up, I first check my wallet: is there any dapp still with "unlimited approval"? This thing usually doesn't seem like a big deal, but when something goes wrong, it's like sleeping with the door unlocked. You think it's just a one-time use, but in reality, the permission is a long-term pass. If the contract gets hacked, the front end gets replaced, or a phishing signature passes by, what's in your account is no longer yours.

I'm even more anxious about the recent wave of cross-chain bridge hacks. Everyone is shouting "wait for confirmation" and consensus, but on the chain, it's a different story: permissions are still there, and no matter how many confirmations, they can't stop the transfer. And then there are oracle price anomalies—when prices fluctuate, bots jump in like crazy. Only afterward do you realize that the approvals you granted haven't been revoked.

My current habit is: revoke permissions after use. If I can't revoke, I switch to a new account or small amounts. I'd rather pay more gas than risk losing that small amount. Honestly, what I've learned isn't a trick, but this: don't treat "doing it later" as a security strategy.