Network security is essential for overall cybersecurity because the network is a significant line of defense against internal or external cyberattacks.

FREMONT, CA: Today people live in an information age. Companies are more digitally innovative than ever before, and as technology advances, organizations' security postures must enhance as well. With so many devices interacting with one another through wired, wireless, or cellular networks, network security is a critical concept to understand.

What is Network Security?

The act of taking preventative measures to secure the fundamental networking infrastructure from unauthorized access, misuse, malfunction, modification, destruction, or improper disclosure is known as network security.

There is no doubt that the internet has become an integral part of the daily lives. Numerous people in today's generation depend on the internet for various professional, social, and personal purposes. But it is necessary to be sure whether the network is secure or not. 

Many people try to harm internet-connected computers, violate people's privacy, and prevent them from using Internet services. Despite the frequency and wide range of existing attacks and the threat of new and more damaging attacks in the future, network security has emerged as a critical subject in the field of cybersecurity. Enforcing network security measures enables computers, users, and programs to carry out their authorized crucial functions in a secure environment.

What are the various types of network security?

A network security system is made up of several components that work collaboratively to enhance the security posture. The following sections go over the most common network security elements.

Access Control

Companies must be able to prevent unauthorized users and devices from accessing the network to keep future attacks away. Users with network access should only access the resources for which they have been granted access.

Application Security

Application security encompasses the hardware, software, and procedures used to identify and close the application vulnerabilities that attackers can exploit to gain access to the network.


A firewall is defined as a device or service that functions as a gatekeeper, determining what goes in and out of a network. To enable or block traffic, they employ a set of predefined rules. A firewall can be either hardware or software.

Virtual Private Networks (VPN)

A virtual private network (VPN) encodes the connection between an endpoint and a network, typically over the internet. It verifies the communication between a device and a secure network, forming a secure, encrypted "tunnel" across the open internet.