Could Modern DeFi Security Tools Have Prevented the DAO Hack?

It is highly likely that modern DeFi security tools could have prevented the DAO hack. Static analysis tools like Slither or Mythril would have automatically flagged the reentrancy vulnerability by detecting the violation of the Checks-Effects-Interactions pattern.

Formal verification tools could have mathematically proven that the contract's state could be compromised. Furthermore, the widespread use of community-vetted, audited libraries like OpenZeppelin's ReentrancyGuard would have provided a simple and robust defense against this type of attack.