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Table of contents
Network Security
Working on the Network Security
Types of Network Securities
Benefits of Network Security
Challenges of Network Security 
Frequently Asked Questions
What is the need for network security?
How to enable a Firewall on a personal computer?
What are the other types of network securities which are not listed above in the blog?
What are the three categories of security?
Why is network security important?
Last Updated: Mar 27, 2024

Introduction to Network Security

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Prerita Agarwal
Data Specialist @
23 Jul, 2024 @ 01:30 PM


In this article, you will study network security. You will also see the working of network security. You will look at the importance of it. Before we study network security, let’s understand what security means in computers. Security in a computer means the methods, tools, and ways to protect your computer and your assets. It means protecting your computer systems from unauthorized access, theft, and harm from viruses. The study has become more critical with the easy availability of the internet to the users. The internet's availability has increased computer attacks,  further leading to the access abuse.

Network Security

Network Security Introduction
  • As the name suggests, it is the method or attempts to secure the network through which we transmit data and use it in our day-to-day life.
  • Network security is a set of terms and conditions along with configurations designed to protect the integrity of the network.
  • It helps to protect the confidentiality of the network. It manages the accessibility of the networks using both software and hardware technologies.
  • Network security is the essential aspect and the method for all companies to protect themselves from cyber threats.
  • Password protection is considered the most basic security method.
  • The vulnerabilities of computer systems that are protected are
    • Locations.
    • Data.
    • Devices.
    • Users.
    • Applications.
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Working on the Network Security

Attacks can happen at any level of the network security model. There are many layers in the network security model. The motive of the model is to protect the data and the confidentiality of the companies. Three different types of controls are discuss as follows:

  1. Physical Security: It is the basic level of network security. It protects unauthorized users from gaining physical access to network components. These components include routers, cables, personal computers, etc. The devices like bio-metrics and retina scans prevent all these threats.
  2. Technical Security: The level that protects our data stored on the network or in the transmission stage. This level of security protects from unauthorized users as well as from malicious activities also.
  3. Administrative Security: It is the level of security that protects from user behaviour. It also defines the allotment of access to the users. It monitors and checks the authorization and rights given to the users.

You can also read about the Layered Architecture in Computer Network.

Types of Network Securities


Let's discuss different types of network securities that are listed below:

    1. Control of Access

It is crucial in the corporate world that each level has its control level. Not every person should have complete access to the system. We can manage and monitor this with the help of Network access control. Only a few authorized people can access a particular amount of resources and data.

      2. Cloud Security

Cloud storage has become the most essential and efficient storage container for data. Many companies are implementing their storage containers on the cloud. There are few companies that provide cloud services. So now, the data is much more vulnerable to unauthorized use and needs protection. Companies use SaaS applications to provide partial or limited access to employees to ensure data protection. 

      3. Anti-Virus

    Antivirus protects an organization from various types of attacks and malicious software. This malicious software included viruses, worms, trojans, ransomware, etc. This antivirus and anti-malware software protects our systems from these attacks and software.

     4. Firewall Protection

    The firewall is a barrier between the untrusted external networks and our trusted internal networks. The  terms and conditions that help block or allow traffic are defined.

      5. Virtual Private Network

Virtual Private Network, also known as VPN, is used to create a connection from one endpoint to another endpoint or the website. Using VPN, we can transmit the data. The data is encrypted between these two points.

     6. Intrusion detection system

This system helps detect unauthorized attempts and flags that are dangerous to your system. This work with the combination of firewalls.

     7. Data Loss Prevention(DLP)

To maintain the confidentiality of data, organizations use the DLP technology that restricts the employee from sharing the information with other networks. This technology helps in blocking the ports of sharing and forwarding.

Benefits of Network Security


There are different benefits of using security in your network:

Control over data access

It is crucial to control your data. Not every user is allowed to access and make changes in the network and its data. You can limit access to your network.

It prevents illegal access.

Reduced Risk.

The proper network security will help reduce attacks on your network. It will save you from viruses and malicious software that harm your computer.

Protect Sensitive Information.

 With proper security and control, you can store your sensitive information in the right place. You can protect your crucial information and ensures the protection of data.

Protection against Cyber Attacks.

 With the easy availability of the internet, it becomes easy for hackers to attack your network and steal the data. You can protect your computer from cyber-attacks if network protection is appropriately enabled.

Centralized Updates.

These updates are essential in saving your computer from hardware and software viruses. The attackers can quickly attack the older version when the new version update is available.


 Helps build trust with the clients with proper security and safe data. Data security helps build trust and mutual consent between the client and the company. Security failures can harm a company’s reputation.

Challenges of Network Security 

⚡With more features comes more vulnerabilities. These vulnerabilities serve as a challenge for network security.

⚡Not enough IT Security Management. Securing your computer from viruses and attacks requires lots of effort and time. 

⚡The easy availability of the internet, attacks have become more common and are now more intense.

⚡Insecure Configurations another challenge to network security. Wrong configurations may sometimes prove to be treating and misleading.

⚡privileged Access. For hackers, it is easy to target the privilege control than the whole network altogether. Abuse usage of the User accounts has been challenging.

⚡ Time-consuming. These securities sometimes prove time-consuming and take a lot of time to load tasks.

Frequently Asked Questions

What is the need for network security?

With time, most of the things in the world are getting digitalized. Digitalizing things requires data and personal information. It needs to be protected from inappropriate use. Therefore network security is necessary to keep the data safe.

How to enable a Firewall on a personal computer?

The person can enable the firewall in the system's control panel by selecting the windows firewall in the system and security option.

What are the other types of network securities which are not listed above in the blog?

The other types of network securities include Sandboxing, Data Loss Prevention, Hyperscale network security, and Intrusion prevention systems.

What are the three categories of security?

There are three main categories of security. They are management security, operational security, and physical security.

Why is network security important?

Network security plays an essential role in preventing unauthorized access to the network. It helps in maintaining the confidentiality of the data.


This blog has discussed network security and its types. We have seen the levels of network security. We further look at the working of network security. We discussed the benefits as well as the challenges that are faced in network security.

To study more about Computer Networks, refer to Register in Computer.

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