network security is the practice of protecting the network and data to maintain the integrity, confidentiality and accessibility of the computer systems in the network. It covers a multitude of technologies, devices and processes, and makes use of both software- and hardware-based technologies.
Each organization, no matter what industry they belong to or what their infrastructure size is, requires comprehensive network security solutions to protect it from various cyberthreats happening in the wild today.
Network security layers
When we talk about network security, we need to consider layers of protection:
Physical network security
Physical network security controls deal with preventing unauthorized persons from gaining physical access to the office and network devices, such as firewalls and routers. Physical locks, ID verification and biometric authentication are few measures in place to take care of such issues.
Technical network security
Technical security controls deal with the devices in the network and data stored and in transit. Also, technical security needs to protect data and systems from unauthorized personnel and malicious activities from employees.
Administrative network security
Administrative security controls deal with security policies and compliance processes on user behavior. It also includes user authentication, their privilege level and implementing changes to