Two-factor authentication (2FA) adds an extra layer of security. To enable it:

1. Click your profile image (top/bottom corner) → Account Settings.
2. Go to Security → Two-factor authentication.
3. Download Google Authenticator for Android or iOS if you don’t have it.
4. In the app, add an account by scanning the QR code or entering the token code manually.
5. Enter the 6-digit verification code from the app in the required field.
6. Click Save changes to activate 2FA.