Regular users can protect themselves from DeFi theft without understanding every attack method. Just remember these four rules. First, avoid granting unlimited approvals. If you can set a fixed amount, don’t choose unlimited approve. Revoke permissions immediately after use—especially for small protocols, memecoins, and airdrop sites. Second, never sign anything you don’t understand. Many think signatures don’t cost gas, so they’re safe—but Permit, Permit2, order signatures, and authorization signatures can all hand over control of your assets. Third, only access frontends through official channels. Never click links from groups, DMs, or search ads. One of the cheapest DeFi attacks is creating a fake website that looks identical to the real one. Fourth, stay away from low-tier protocols. High APY isn’t yield—it’s risk pricing. Smaller protocols have weaker audits, monitoring, access controls, and emergency response capabilities. Your security strategy as a regular user doesn’t need to be “I can identify every risk.” It should be: Don’t grant permissions to unknown contracts; Don’t sign unknown messages; Don’t access unfamiliar frontends; Don’t interact with unknown protocols. You’re not avoiding just one attack. You’re avoiding an attacker’s carefully planned withdrawal path.