> ## Documentation Index
> Fetch the complete documentation index at: https://docs.oncortex.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Signing in and MFA

> Getting into your account, securely

## Signing in

You can sign in to Cortex two ways:

* **Email and password.** Register with your email, confirm your address from the email we send, and sign in.
* **Google.** Use your Google account to sign in with one click, no separate password to remember.

You can use whichever suits you. If you registered with email and later want the convenience of Google, you can sign in with Google using the same address.

## Two-factor authentication (MFA)

For extra security, turn on two-factor authentication, so signing in needs a second step beyond your password. Cortex offers two methods:

* **Authenticator app.** Scan a code with an app like Google Authenticator or 1Password, and enter the six-digit code it generates when you sign in. This is the most secure option.
* **Email codes.** Cortex emails you a code to enter when you sign in.

<Steps>
  <Step title="Open your security settings">
    Go to your account security settings and choose to set up two-factor authentication.
  </Step>

  <Step title="Choose a method">
    For an authenticator app, scan the code shown with your app, then enter the code it gives back to confirm. For email codes, enable email as your method.
  </Step>

  <Step title="Keep your recovery codes">
    When you enable an authenticator app, Cortex gives you recovery codes. Save them somewhere safe. They let you back into your account if you lose your device.
  </Step>
</Steps>

## Changing your details

Your name, password and other profile details are all in your account settings. Changing your password does not sign out your connected agents; those are managed separately on each brain's Connect page.