Table of Contents | 目录Introduction | 引言Technical Understanding | 技术理解Practical Examples | 实际示例Visual Representation | 可视化表示Setup and Access Guide | 设置和访问指南Best Practices | 最佳实践Where to Buy | 购买指南1. Introduction | 引言In the ever-evolving world of cryptocurrency, security isn't just an option – it's an absolute necessity. A passphrase, often called the "25th word" or "hidden wallet," is one of the most powerful security features available to Ledger hardware wallet users. This comprehen...