> For the complete documentation index, see [llms.txt](https://synergyofserra.gitbook.io/the-compendium-of-serra/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://synergyofserra.gitbook.io/the-compendium-of-serra/support-1/security/two-factor-authentication-2fa.md). # Two-factor authentication (2FA) ### Add two-factor authentication (2FA) to your account Log in to your Synergy of Serra account via the website. Download an authenticator app, such as [Google Authenticator](https://www.wired.com/story/how-to-use-google-authenticator-app/). Go to your Account page, click *Activate,* and follow the instructions. ### What is two-factor authentication (2FA)? Two-factor authentication (2FA) adds a layer of security that is used to protect accounts and personal information. This additional layer is typically a one-time code that is generated by an app or sent via text message to a user's phone. The most common form of 2FA is a combination of a password and a one-time code that is generated by an authentication app or sent via text message to a user's phone. 2FA can be used to protect a wide range of accounts, including email accounts, social media accounts, and online banking accounts. It is also commonly used in cryptocurrency exchanges and trading platforms to secure users' accounts. It's important to note that 2FA is not foolproof, and the security of the 2FA method can vary. Some methods, like SMS-based 2FA, are considered less secure than other methods, such as using an authenticator app. ### How does two-factor authentication (2FA) work? It typically works like this: 1. User attempts to log in to an account by entering their username and password. 2. The system prompts the user for a one-time code, which is generated by an app or sent via text message to the user's phone. 3. User enters the one-time code and is granted access to the account if the code is correct. The one-time code is typically valid for a short period of time (e.g. 30 seconds) and can only be used once. This makes it much more difficult for an attacker to gain unauthorized access to an account, even if they have obtained a user's password. --- # 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://synergyofserra.gitbook.io/the-compendium-of-serra/support-1/security/two-factor-authentication-2fa.md?ask=&goal= ``` `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.