> For the complete documentation index, see [llms.txt](https://docs.birdie.so/birdie-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.birdie.so/birdie-docs/security/two-factor-authentication.md).

# Two-factor authentication

{% hint style="info" %}
Two-factire authentication does not apply for SSO, it is only applicable as additional security layer for the Birdie OTP login.
{% endhint %}

To turn on two-factor authentication:

1. Go to [User Settings -> Your Profile](https://app.birdie.so/user/profile). 
2. Click on **Manage**, then **Set up authenticator app**.
3. Scan the QR code (using Google Authenticator app, Twilio Authy app, etc...)
4. Verify it.
5. Save your backup codes somewhere safe.

<figure><img src="/files/LIv9DZQlWmCcZAQlbJDY" alt=""><figcaption></figcaption></figure>