Which of the following is NOT considered a common network threat?

Network segmentation is a strategy used to improve security and performance within a network by dividing it into smaller, manageable parts. It helps limit access to sensitive information and reduces the attack surface by isolating segments of the network from each other. This practice enhances prevention against various threats rather than being a threat itself.

In contrast, denial of service attacks, cloud computing threats, and man in the middle attacks are all significant types of network threats. Denial of service attacks aim to disrupt services by overwhelming resources, cloud computing threats involve vulnerabilities inherent in cloud environments, and man-in-the-middle attacks involve intercepting communications between two parties without their knowledge. All these scenarios pose risks and challenges that security professionals must mitigate. Thus, network segmentation stands apart as a protective measure, solidifying its position as not being a common network threat.