vSphere vSphere 5.1 Hardening Guide Alexander Ervik Johnsen Hardening Guide, Virtualization, VMware, vSphere 5.1 April 17, 2013 The VMware Security team has officially released the vSphere 5.1 Hardening Guide. The guide is being released as an Excel spreadsheet only. This guide follows the same format as the 5.0 guide. All reference and documentation URL’s and code samples have been updated for 5.1. Click here to download the VMware vSphere 5.1 Hardeining Guide.