How does a demilitarized zone (DMZ) enhance network security?

Implementing a DMZ (Demilitarized Zone) enhances the security of sensitive data by creating a buffer zone between the internal network and the external network (e.g., the internet). This separation helps to isolate sensitive data and critical services from potential threats coming from the internet. By placing servers, such as web servers or email servers, in the DMZ, organizations can control and monitor incoming and outgoing traffic more effectively. This setup adds an additional layer of security as it allows for the implementation of specific security measures and controls, such as firewall rules, intrusion detection systems, and network segmentation, to protect sensitive data from unauthorized access and cyber attacks.