Network Security is designed to protect your network and its data from multiple layers of breaches and intrusions with hardware and software solutions. Network Security is a vast and overarching term, and not just one thing, but is a broad term used to describe many different types of technology and various processes used to define a set of rules and configurations relating to network use, threats, accessibility, and overall threat protection.
Network Security typically consists of three different controls: physical, technical and administrative. Network Security involves access control, virus and antivirus software, application security, network analytics, many types of network-related security (endpoint, web, wireless), security gateways/firewalls, VPN encryption and many more.