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Hyperjacking is an attack in which a hacker takes malicious control over the hypervisor that creates the virtual environment within a virtual machine (VM) host. [1] The point of the attack is to target the operating system that is below that of the virtual machines so that the attacker's program can run and the applications on the VMs above it will be completely oblivious to its presence.
The extensive use of virtualization in implementing cloud infrastructure brings unique security concerns for customers or tenants of a public cloud service. [8] Virtualization alters the relationship between the OS and underlying hardware – be it computing, storage or even networking.
The software or device providing storage virtualization becomes a common disk manager in the virtualized environment. Logical disks (vdisks) are created by the virtualization software or device and are mapped (made visible) to the required host or server, thus providing a common place or way for managing all volumes in the environment.
In the sense of providing a highly controlled environment, sandboxes may be seen as a specific example of virtualization. Sandboxing is frequently used to test unverified programs that may contain a virus or other malicious code without allowing the software to harm the host device.
In computer security, virtual machine (VM) escape is the process of a program breaking out of the virtual machine on which it is running and interacting with the host operating system. [1]
It has also been used in network function virtualization (NFV) to improve virtual network infrastructure. [5] Implementing this type of software requires a high degree of technological sophistication and can incur significant costs. There are also concerns about the risks associated with AI, such as algorithmic bias and security vulnerabilities.
Full virtualization – Almost complete virtualization of the actual hardware to allow software environments, including a guest operating system and its apps, to run unmodified. Paravirtualization – The guest apps are executed in their own isolated domains, as if they are running on a separate system, but a hardware environment is not simulated.
The Virtualization Practice. Sept 2009 "OPINION / Why do we need virtual security? "Ben-Efraim, Amir. Government Security News. Aug 2009 "Keep Your Virtual Networks Safe" Zillion Magazine. July 2009 "The virtual blind spot" Schultz, Beth. NetworkWorld. July 2010 "Cloud security in the real world: 4 examples" Brandel, Mary. CSO: Security & Risk ...