What is Network Security? | Different types of protection

What is network security: Today’s every business or organization, irrespective of its size either it belongs to smaller or bigger industry or infrastructure, they all needs a certain level of network security solutions to protect it from the rapid growing of cyber threats in today’s nature of world.

Today’s the various network architectures becomes complex and have to faced by a  threat environment controlled by oneself in order to lose rights and exploit the weak points. So in this condition it is most important to know about What is network security?

As we all know that, the largest network in the world is the Internet and today it is used in every field. In such a situation, network security becomes more important and you should aware about What is network security? Here Network means a group of two or more computers that are interconnected and can communicate with each other and security means to keep a network from access to unknown users.

Today’s  in this article What is network security, you will know about What is network security? What are the types of network security?, How does network security work?, and benefits of Network Security and many more.

What is network security?

Network security is a broad term that covers a wide or multiple variety of technologies, devices and processes. In simplest term, we can say it is a set of rules and technologies which is used to protect the usability, integrity and accessibility of company’s infrastructure, computer networks and data using hardware and software technologies, preventing the entry within a network of a wide variety of potential threats.

In other words we can say, It is process through which a network can be protected from unauthorized user access and to protecting all information and data sent through devices is called network security.

A network security architecture consists of tools that protect the network itself and the applications that run on it. The effective network security strategies employ multiple lines of defense automatically. Each layer of defense enforces a set of security policies that is establishes by the administrator.

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How does network security works?

Network security combines multiple layers of defense in the network and each layer implements policies and controls to gain an access to network resources for an authorized users, but malicious actors got blocked so, they can’t carry any exploit and threats.

There are many levels to consider when approaching network security in an organization. Attacks can occur at any level of the network security layer model. Therefore, your hardware, software and network security policies must be designed to cover every area.

Network security generally consists of three different controls: physical, technical and administrative.

Physical network security: The physical network security controls are designed to prevent unauthorized personnel from gaining physical access to network components such as routers, cable closets  and so on. Controlled access like locks, biometric authentication and other devices is essential in any organization.

Technical network security: This network security protect data which is stored or transmitted over into or out of the network. There is a two layer/twofold protection to protect data and systems from unauthorized personnel and protect them from malicious employees activities.

Administrative network security: It consist of security policies and processes that control user behavior, users authenticate, their level of access, and changes implement to the infrastructure by IT staff.

Benefits of network security

Digitization has changed everything in the world such as way of living, work, play and learn. Every organization provides some services which is required by customers and employees must protect its network. It also helps you to protect your proprietary information from attack and reputation.

Network security plays a vital role or act as a key for a company’s/organization to deliver products and services to customers and employees. It is most important to protect apps data on the network to advancing the business. In addition of it, an effective network security improves network performance by eliminating downtime. due to successful attacks.

It protects customer information and data, shared data and providing reliable access and network performance by protecting against cyber threats. The well-designed network security reduces overhead expenses and protects organizations from cost loss caused by a data breach or other security incident.

Types of network security


Firewalls are another common element of a network security model that acts as a barrier between trusted internal network and untrusted external networks, such as the Internet. It control incoming and outgoing data traffic on networks with predefined security rules to allow or block traffic. A firewall can be hardware, software, or both. It prevent threats from accessing the network and focused on blocking malware and application-level attacks..

Anti-virus and anti-malware software

The malware is also known as malicious software, which includes viruses, worms, Trojans, ransomware and spyware. It infects a network of computer for days or weeks. The security efforts must do everything possible to prevent the initial infection and eradicate the malware that enters your network. The best antimalware programs not only scan for malware, they also continuously monitor files to find anomalies, remove malware, and repair damage.

Access control

The access control refers to controlling which users have access to the network or particularly in sensitive areas of the network. It regulate that not all users get access to your network which having a potential attack your network to give harm. It allows access to the network which only be able to work with the limited resources for which they are authorized and block all other incompatible endpoint devices or grant them restricted access. It uses security policies to restrict network access to only identified users and devices.

Email security

Email is an important factor in the implementation of network security tools. there are various number of threat vectors including fraud, phishing, malware and suspicious links have attached or embedded in emails. It is important to ensure that an organization’s employees receive adequate security awareness training to know when an email is suspicious. The email security software filters out incoming threats and blocks incoming attacks and controls outgoing messages to prevent the loss of confidential data.

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Application security

Every software which you use it for your business in your networking environment needs protection to avoid a potential gateway for hackers. it is important that all programs are kept up-to-date and patched to prevent cyber attacks from exploiting vulnerabilities to reach sensitive data. Application security includes the hardware, software and processes used to monitor problem and to fill these gaps in your security coverage by locking insecure apps down.

Data loss prevention

Data Loss Prevention (DLP) are technologies which is used prevent organization’s  sensitive and valuable information to expose or release outside the network by employees, whether accidentally or maliciously. DLP technologies can prevent actions that expose data to bad actors outside of the network environment, such as:  uploading and downloading files, forwarding messages or printing. The organization have to make sure that their staff does not send out any sensitive information outside.

Web security

Web security controls employees web use and limits internet access for employees. It blocks web-based threats and deny access to malicious websites. It works to protect a customer’s web gateway on site or in the cloud.

Network segmentation

Network segmentation divide and classify network traffic into different classifications and makes enforcing security policies easier. It also make easier to assign or deny authorization credentials for employees and helps to link potentially compromised devices or interventions.

Mobile device security

Today’s most of the world population use mobile devices and apps and there are several personal or confidential information stored on it which required a protection. According to a report in the next three years, 90 percent of IT organizations will be able to support corporate or enterprise applications on personal mobile devices. By the implementation of mobile device security measures, it ensures limit device access to a network and avoid any leak out through vulnerable mobile connections by configure connections to keep network traffic private.

Security information and event management

The SIEM security systems combine host-based and network-based intrusion to detect systems for monitoring of network traffic with scanning of historical data log files to give administrators a complete picture of all activities in the network. It is similar to intrusion prevention systems (IPS) which scan network traffic for suspicious activity, policy violations, unauthorized access, and other signs of potentially malicious behavior to actively block intrusion attempts. These products are available in various forms, includes physical and virtual appliances and server software.

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