Just found this from Duncan’s blog today and I think is important to share with every VMware administrator. The security hardening reference guides are available from VMware now. You can read the full details from here. I will suggest all the VMware administrator to read this and consider to implement the necessary configuration to secure the virtual infrastructure. These documents are not final yet and still in draft version but I do find it is helpful for everyone to understand and consider about the security hardening from every aspect.