Blowfish is a security engine designed to protect web3 wallets and their users from fraud and scams. It offers proactive defense capabilities across multiple blockchain networks, scanning transactions and identifying potential risks before they can impact users. Blowfish supports over 10 blockchain networks and has processed over 1.3 billion transactions, preventing 2.8 million scams and protecting over $10 billion in assets. It provides security features for various interfaces within wallets, including DApp connections, transaction signing, and message signing.