How do you prevent a VM from being added to the Virtual Machine Library?

How can I prevent a virtual machine from being added to the VM Library?

I consider this to be an information disclosure security risk.

For example, I have a VM that processes high confidential company information. That VM resides with an encrypted container. I do not want the encrypted container to be discoverable by the VMware Library pointing to a VM in the encrypted container.

So, how do I prevent VMware from added my VM to its library every time I start the VM?

Thanks!

JK