Customer WebApp
In the newest version of the VmBox, your customers can use a WebApp to access and manage their servers easily. This WebApp can be installed as PWA on your customers' PCs or Mobile Phones. And don't worry about the security. The installed versions have less access than the WHMCS panel's WebApp. your customers can put password or remove the sessions to manage access to their server.
For more information, go to Customer WebApp documentation.