For added security, you can configure a Connection Server instance so that users and administrators can authenticate by using smart cards.
A smart card is a small plastic card that contains a computer chip. The chip, which is like a miniature computer, includes secure storage for data, including private keys and public key certificates. One type of smart card used by the United States Department of Defense is called a Common Access Card (CAC).
With smart card authentication, a user or administrator inserts a smart card into a smart card reader attached to the client computer and enters a PIN. Smart card authentication provides two-factor authentication by verifying both what the person has (the smart card) and what the person knows (the PIN).
To use smart cards, client machines must have smart card middleware and a smart card reader. To install certificates on smart cards, you must set up a computer to act as an enrollment station. For information about whether a particular type of Horizon Client supports smart cards, see the Horizon Client documentation at https://docs.vmware.com/en/VMware-Horizon-Client/index.html.