The comprehensive summary on risk control systems released by Spark's founder really highlights why Spark has managed to stand out and remain unaffected during multiple hacking incidents. First off, Spark has a 6-layer loss absorption mechanism, providing layer-by-layer buffering and protection, only impacting USDS holders after all layers are exhausted. Secondly, it strictly limits the quantity and entry thresholds for collateral, and all cross-chain funds are subject to smart contract-level rate restrictions. If AAVE had implemented these two measures, the recent $300M rsETH theft wouldn't have happened. This report is something every DeFi protocol should learn from. I recommend that all major projects form an alliance to establish mandatory DeFi security standards, ensuring only projects that meet these standards and pass audits are included in the alliance.