Google recently rolled out in beta specialized virtual machines called Shielded VMs. Google explains in a blog post released today by Nelly Porter, Google Cloud senior product manager, and Sergey Simakov, technical program manager for Google Cloud Security. The company is publishing details on how Shield VMs keep the cloud secure from attack vectors, including guest system firmware, guest OS via malicious guest-VM vulnerabilities, and malicious customer insiders tampering with guest VM images. The virtual Trusted Platform Module (vTPM) validates guest VM preboot integrity and generates and secures encryption keys.”]
Source: https://www.darkreading.com/cloud/google-details-tech-built-into-shielded-vms