Network security is the process of using hardware and software in order to protect a network from unauthorized access, attacks and misuse. There isn’t a single solution to protect a network, therefore several technologies are used to increase the level of protection, some of this are:
- Restricting access to the hardware.
- Firewalls.
- Anti-viruses.
- VPNs.
- Network monitoring systems.
Flickr photo by Yuri Samoilov https://www.flickr.com/photos/yusamoilov/13334048894 shared under a Creative Commons (BY) license.
Computer and Information Security 