Typically, these actors attempt to exploit flaws in the system implementation or its deployment in order to obtain information, acquire access to services, or simply to disrupt the operation of the cloud through loss of system availability or system and information integrity. As the description of these attacks implies, some of these attacks violate the tenant boundaries and hardware abstraction layers that VMware vCloud Director attempts to enforce. While the deployment of the different layers of the system affect the mitigation of these threats, the externally facing interfaces, including firewalls, routers, VPNs, and so on, are of utmost concern. .