Blast stated on social media that security involves multiple aspects, including smart contracts, browsers, and physical security. Immutable smart contracts are generally considered more secure, but may bring greater risks, especially in complex protocols. Upgradeable contracts are important, as they provide solutions for vulnerabilities, despite the potential for loopholes. Each signature key in the multi-signature setting is independently secure, stored in cold storage, managed by independent parties, and dispersed geographically. This approach aims to enhance the protocol's ability to resist various security threats. They plan to switch one of their multi-signature addresses to a different hardware wallet provider within a week to enhance security. This is to prevent reliance on a single type of hardware wallet, thereby reducing the risk of damage due to specific hardware vulnerabilities.