ESXi is developed with a focus on strong security. VMware ensures security in the ESXi environment and addresses system architecture from a security standpoint.

You can take measures to promote a secure environment for your ESXi hosts, virtual machines, and iSCSI SANs. Consider network configuration planning from a security perspective and the steps that you can take to protect the components in your configuration from attack.

ESXi handles user authentication and supports user and group permissions. In addition, you can encrypt connections to the vSphere Client and SDK.

ESXi deployment scenarios can help you understand how best to employ the security features in your own deployment. Scenarios also illustrate some basic security recommendations that you can consider when creating and configuring virtual machines.