Two-step verification (also known as two factor authentication or 2FA) is a highly recommended security feature that adds an extra layer of protection to your account. Enabling two-step verification means that DatoCMS will require a six-digit security code (in addition to your password) when you sign in to your account or link a new computer, phone, or tablet.
If you've already have 2FA set up on your account, you'll need to disable it and then re-enable it to get your backup codes.