智能聊天系统的意义，已经不只在于会聊天。从相关研究可以看到，它一端连接问答系统，另一端进入健康管理等高频场景。过去用户面对的是固定菜单，实际使用中更期待用自然语言直接提出问题，并获得个性化建议。 在教育领域，对话式AI正在从知识搜索框走�

As AI chat assistants move into mainstream use, their ability to protect information has become a critical measure of trust. Users may share business plans, personal questions, and internal documents during a single interaction. A useful system must therefore do more than understand natural language. It must also protect data throughout its lifecyc