According to CoinDesk, blockchain security platform Ironblocks has launched a new tool called Firewall to serve DeFi developers who want to enhance the security of their smart contracts. The service already has three big users at launch: zkEVM chain Linea, AltLayer, and second-layer network Kinto, and more users are joining. Firewall allows developers to plug and play various security "strategies" to monitor transactions on their decentralized financial protocols for suspicious attempts. According to CEO Or Dadosh, Firewall is located inside the smart contract that handles protocol transactions, and developers can choose some strategies to look for suspicious patterns and other signs that may indicate that hacking attacks are underway. Dadosh said that developers can add more strategies to their code after the fact and can delete them. How developers make these changes is entirely up to them. They may give decision-making power to the governance community of token holders of their project, or to wallets (multi-signature) or DAOs controlled by multiple parties. The goal is to stop hacking attacks before they happen.