Dfns is a cybersecurity company that provides a wallet-as-a-service platform for digital assets and cryptocurrency management. The company specializes in cryptographic key management using multi-party computation (MPC) technology to decentralize private keys and eliminate single points of failure in blockchain-based systems. The platform enables developers to build and integrate digital asset wallets into web3 applications and programmable finance solutions. Dfns supports multichain ecosystems including Bitcoin, Ethereum, Solana, Aptos, Canton, and Hedera. The company has secured over $20 billion in assets, created more than 10 million wallets, and processes over $1 billion in monthly transfers. Dfns implements passkey-based authentication using W3C WebAuthn standards, SSO, and SAML protocols. The platform offers integration with hardware security modules from providers like Securosys, Thales, IBM, and Yubico. The company maintains SOC 2 Type II compliance, ISO 27001, ISO 27017, and ISO 27018 certifications, and holds a DASP license from the French financial regulator AMF. The company's infrastructure undergoes regular security audits and penetration testing by firms including Deloitte, KPMG, Halborn, and Kudelski Security. Dfns provides insurance coverage for crime, cyber incidents, and errors and omissions through Munich Re and Beazley. The company operates globally with teams across nine time zones providing 24/7 support. Clients include IBM, Google, BlackRock, and Standard Chartered.