“SCADA systems refers to the centralized systems that control and monitor the entire sites” (SCADA systems 2020). That being said, the main vulnerability would be unauthorized access to the software. Since these networks are not connected to the internet it makes it a lot harder to compromise the integrity of this system. However, if an individual were to gain access a virus could be placed and therefore lead to the corruption of this system. The second vulnerability that poses a threat is the packet access to network segments. These systems are widely used for infrastructure projects like traffic lights, gas transportation, and distribution of water, etc. Therefore they are at high risk from cyberwarfare attacks since, if they were to be hacked, it would be very detrimental to whatever nation is under attack. As mentioned before, many, if not most, SCADA systems are isolated from other network connections. This allows for less traffic between servers which inevitably results in fewer threats being possible. In order for a threat to become real, it would need to be physical. In the sense, as mentioned before, that someone would need to gain physical access to the servers of the system. By doing so they would then have control over the system to an extent. The main thing this would allow is the destruction of the server resulting in infrastructure failure. Limiting access to the systems is the main mitigation, only allowing administrators to alter the data or command the systems. The main point this is leading to is that; physical security for SCADA servers can be argued as more important than cybersecurity. However, simply implementing a firewall or VPN to these systems would further strengthen the overall integrity. Knowledge of these systems would make an “inside-job” easier and the greatest risk. This is most likely the reasoning to why these systems are mainly used at higher levels. If they were to be used by everyone and anyone then the security can easily be breached.