Yes, rogue systems do exist, and they refer to unauthorized or unmanaged computing devices or systems that connect to a network. These can include computers, servers, and even Internet of Things (IoT) devices that have not been officially approved or are not being managed according to the organization’s established IT policies. Rogue systems can pose significant security risks because they might not have the necessary security patches, configurations, or monitoring in place, making them vulnerable to exploitation by cyber attackers. Furthermore, their presence in the network can lead to data breaches, unauthorized access, or they can serve as a launch point for further attacks within the network. Organizations typically implement various network security measures, such as network access control (NAC), intrusion detection systems (IDS), and regular network scans to detect and mitigate the risks associated with rogue systems.