Two-factor authentication (2FA) adds a second layer of protection to your Holidu host account. After you enter your password, you must also enter a one-time verification code. This keeps your account and data safe even if someone else learns your password. 2FA is mandatory for all hosts with published properties.

What is 2FA?

Two-factor authentication requires two things to log in:

1. First factor: Your email address and password
2. Second factor: A one-time verification code, sent through one of the following methods:
   1. SMS (mobile phone)
   2. Authenticator app (for example, Google Authenticator or Authy)

You can set up multiple methods for backup access. However, each method can only be registered once. For example, you can register only one phone number or one authenticator app.

Where to Set Up 2FA

1. Log in to your Holidu Host Account. You may be prompted to set up 2FA right after login. If not, continue to step 2.
2. Go to the Profile Picture Menu, and then select Security.
3. Click Configure next to the authentication method(s) you want to activate.

Choose Your 2FA Method

Method 1: SMS (Mobile Phone)

SMS is the fastest and easiest way to set up 2FA. Verification codes are sent to your mobile phone as a text message.

1. Select SMS from the list of authentication methods.

1. Enter the phone number you want to use and click Get SMS Code.

1. Enter the 6-digit code you receive by text message and click Verify.

1. You will see a confirmation message once the setup is complete. Congratulations, your account and your data are now secured!

Method 2: Email

Email is not currently available as a second factor for two-factor authentication on Holidu. Your email address is used as your login identifier, while your verification codes are delivered by SMS or by an authenticator app. To add a backup method, set up SMS or an authenticator app as described in this article.

Method 3: Authenticator App (Recommended)

An authenticator app is a small program you install on your smartphone or tablet. It generates a new 6-digit security code every 30 seconds that only you can see. Because the codes are created directly on your device, the app works even without an internet connection or mobile signal.

1. Download an authenticator app such as:
   • Google Authenticator: Android | Apple
   • Authy: Android | Apple
2. In your Holidu security settings, select Authenticator App from the list of methods.

1. Scan the QR code displayed on your screen with your authenticator app. If scanning does not work, use the manual code instead.

1. Enter the 6-digit code generated by the app, give the device a name (for example, "My mobile phone"), and click Submit.
2. You will see a confirmation message once the setup is complete. Congratulations, your account and your data are now secured!

After Setup

From now on, logging in requires:

1. Entering your password
2. Entering the 6-digit code from your chosen 2FA method

You can manage your 2FA settings at any time in the Security section of your Holidu account.

Tips for Success

• Start with SMS if you want the quickest setup. Choose an authenticator app if you want codes that work without mobile signal.
• Enable at least two different methods in case you lose access to one of them.
• Remember that each method can only be registered once: one phone number and one authenticator app.
• Keep your phone's time settings set to automatic, so authenticator codes stay accurate.

Frequently