DeFi frontends must implement robust safety features to prevent catastrophic user losses and protect against MEV attacks. Key measures include hard-blocking swaps with high price impact, validating route liquidity, defaulting to private transaction submission, implementing time-locks for large orders, using multi-step confirmation for risky actions, enforcing minimum output based on oracle prices, and educating users on best practices like splitting large orders and verifying price impacts. These protections are crucial as smart contracts alone cannot prevent user errors or malicious attacks; the frontend serves as a critical security layer.
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