Recently, with the bad debt issues in DeFi, some people have started to turn bearish on ETH. In reality, this has nothing to do with the security of Ethereum itself. The rsETH issue this time, along with most of the hacks that happened this year, are related to permission breaches and risk control failures, while problems with underlying contract code are becoming less frequent. Behind this phenomenon lies a blend of technical and human factors, something the development of the internet has also gone through. In the early days, security incidents were more related to implementation flaws and coding logic. Later, as engineering capabilities improved, purely technical issues gradually became 'known problems,' and the focus of attacks shifted to accounts, identities, permissions, and supply chain vulnerabilities. What blockchain is facing today is exactly this kind of historical repetition.