> For the complete documentation index, see [llms.txt](https://support.backpack.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.backpack.exchange/support-docs/cn/jiao-yi-suo/an-quan/liang-bu-yan-zheng-2fa/qi-yong-2fa.md).

# 启用 2FA

🔐  启用双重验证 (2FA) 是保护您的账户和资金最有效的方法之一。我们强烈建议您在注册后立即开启 2FA。

1. 登录交易所账户，点击右上角的 **设置** 按钮，选择 **安全**。

<figure><img src="/files/Et9Dx48jYEAdDvYjJr4f" alt=""><figcaption></figcaption></figure>

2. 在 2FA 区域点击 **启用**，输入发送至您注册邮箱的一次性验证码 (OTP)，然后点击 **提交**。

<figure><img src="/files/tFDcVJzD8xVQ4GPFZ2XE" alt=""><figcaption></figcaption></figure>

3. 使用身份验证器应用（如 Google Authenticator）扫描二维码，在下方输入验证码并点击 **验证**。

<figure><img src="/files/Nrct2xCEytxNP0crJTWj" alt=""><figcaption></figcaption></figure>

:tada:设置完成！


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://support.backpack.exchange/support-docs/cn/jiao-yi-suo/an-quan/liang-bu-yan-zheng-2fa/qi-yong-2fa.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.