#USChinaTensions Cold Wallet Offline, and the use of Two-Factor Authentication (2FA) with multiple options including authentication apps and physical devices like YubiKey, real-time monitoring systems, advanced access controls like whitelist "address" withdrawal and API access restrictions, security notifications to alert about any suspicious activity, and encryption of sensitive data. It also has a Secure Asset Fund for Users (SAFU) to cover losses in case of a breach.