Final answer:
Network Security protects against unauthorized access to a network, using tools like firewalls, while Software Security ensures the security of software via updates and patches to prevent exploitation.
Step-by-step explanation:
The difference between Network Security and Software Security is primarily about the scope and focus of the protection mechanisms they represent. Network Security refers to the policies and practices implemented to monitor and prevent unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. A common Network Security defense strategy is the use of firewalls. A firewall acts as a barrier between your trusted internal network and untrusted outside networks, such as the Internet. For Software Security, it focuses on ensuring that software is secure and free from vulnerabilities that could be exploited by cybercriminals. An example of a Software Security defense strategy is the implementation of regular updates and patches, which correct security flaws and prevent the exploitation of software vulnerabilities.