It is good to know the different system environments that may exist so you can begin to think of best practices to secure it. Let’s go over a few environments and define them.
Virtualization allows multiple instances of “machines” to operate on a platform. The platform is known as a hypervisor. There are two types of hypervisors:
Type 1 – Sits on the actual hardware.
Type 2 – Sits on top of an operating system which itself sits on actual hardware.
Internet of Things (IoT) are smart devices that can be internet connected such as sensors, CCTVs, fridges, etc. These devices may provide a platform to attack corporate systems due to their limited security.
Industrial control systems (ICS) allows us to control systems using supervisory control and data acquisition (SCADA) systems. These are the systems you find in electrical, water, and related industries. The systems use distributed control and programmable logic controllers.
SCADA systems are used to control geographically dispersed assets based on information received from remote stations.
Cybersecurity Fundamentals 