A security deposit is a temporary hold of funds on the guest's credit card that can be used to cover any incidentals or damages that may occur during their stay. The security deposit is typically processed on the day of arrival and refunded on the day of departure, after the unit has been inspected and no damages are found.

Please refer to this article on how to manage security deposits once they are configured:

Configure a security deposit in the Reservation Settings area of the Listing Assistant.

From here, you can specify a security deposit option. If you are signed up with Generali Travel Insurance, you can choose to show a security deposit and/or Generali Damage Protection on your website. If you are not signed up with Generali Travel Insurance, you can choose the "Security Deposit Only" option to itemize the deposit on your Vrbo listings.

You'll also need to create a security deposit template where you can input the amount and a description of the deposit. You can do this by clicking on "View/Edit Templates."

After creating the template, assign it to the listing by choosing the applicable template from the dropdown:

Once the security deposit is assigned to the listing, it will be displayed to guests booking on Vrbo. However, it's important to note that the payment isn't actually processed at the time of booking. This is because security deposits are typically taken on the day of arrival and are a separate hold of funds.