> For the complete documentation index, see [llms.txt](https://doc.bitbrowser.cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.bitbrowser.cn/help1/ri-chang-cao-zuo.md).

# 账号安全

- [如何修改密码](https://doc.bitbrowser.cn/help1/ri-chang-cao-zuo/ru-he-xiu-gai-mi-ma.md)
- [如何找回密码](https://doc.bitbrowser.cn/help1/ri-chang-cao-zuo/ru-he-zhao-hui-mi-ma.md)
- [如何找回用户名](https://doc.bitbrowser.cn/help1/ri-chang-cao-zuo/ru-he-zhao-hui-yong-hu-ming.md)
- [如何开启双重验证登录](https://doc.bitbrowser.cn/help1/ri-chang-cao-zuo/ru-he-kai-qi-shuang-chong-yan-zheng-deng-lu.md)