What Is Network Security?

  • Home
  • What Is Network Security?
What Is Network Security?

Usually, the term “Network Security” refers to a broad concept that encompasses a variety of technologies, machines, devices, and processes.

Security policies establish a set of rules and configurations that are designed to assure that both hardware and software technologies are used to ensure the integrity, confidentiality, and accessibility of computer networks and data on the platform.

Whatever the size, the industry, or the infrastructure of the organization, every organization needs to put some level of protection in place to protect it against the ever-growing landscape of cyber threats that are out there today, regardless of the size, the industry, or the infrastructure.

There are always threats and vulnerabilities that attackers are trying to exploit in today’s complex network architecture. The threat environment is constantly changing and attackers are always searching for vulnerabilities to exploit.

A lot of areas can be vulnerable, including devices, data, applications, users, and locations. This is why today, there are lots of tools and apps to handle threats and exploits, as well as regulatory compliance.

The importance of these protection measures increases when even a few minutes can cause major disruptions and massive damage to the bottom line of an organization.

Also Read: What Is A Legacy System?

Types of Network Security

There are a lot of network security types for different purposes. Here are different types that can secure your network.

Types of Network Security

Network Access Control

You need comprehensive Access Control Policies for users and devices to prevent hackers from getting into your network.

It’s possible to set Network Access Control (NAC) down to the tiniest level. Despite having full network access, a network administrator may not have access to certain confidential folders or may not be allowed to connect personal devices to the network.

Virus And Malware Protection Software

Software that protects against viruses, ransomware, worms, and trojans is known as antivirus and antimalware.

In the meantime, effective file-scanning and tracking software scan files both when they enter the network and continuously over time.

Protection Against Firewalls

A firewall acts as a barrier between your trusted internal network and untrusted external networks. Typically, administrators configure a set of rules to block or permit traffic on their networks.

A Next Generation Firewall (NGFW) by Infratech, for instance, offers seamless network traffic control, whether the traffic is physical, virtual, or in the cloud.


A Virtual Private Network (VPN) connects to the network from another location. In the case of users working from home, they usually connect through a VPN. To allow communication between their device and the network, the user must authenticate in order to send and receive data between the two points.

Hence, our Next Generation Firewall solution allows organizations to protect all locations with drag-and-drop VPN creation and protection.

Also Read: What Is A Security Operations Center (SOC)?

What Are the Different Types of Network Security Tools?

Organizations need to consider many layers when it comes to network security. Hence, it is essential to design your network security hardware, software, and policies to address attacks at all levels of the network security layers model.

However, there are three types of security controls for network systems: physical, technical, and administrative. We will briefly describe how each type of network security control works.

Different Types of Network Security Tools

Securing Physical Networks

Physical Security Control prohibits physical access to network components such as routers, cable cupboards, etc. Hence, a controlled access system consists of locks, biometric devices, and other methods of authentication.

Securing Technical Networks

As data travels across, enters, or leaves a network, or is received, technical security controls protect the data stored on the network. Hence, the protection of data and systems involves two aspects: preventing unauthorized personnel from accessing them as well as protecting employees against malicious activities.

Securing Administrative Networks

Security control is an administrative policy, process, or procedure that controls how a user behaves. However, this includes how they are authenticated, who has access to their data, and how IT staff changes the infrastructure.

Also Read: What Is Network Functions Virtualization NFV?

Network Security Assessment

Basically, a network security assessment uncovers security vulnerabilities where sensitive information could be exposed, harmed, or exploited. Assessments of network security can provide answers to questions such as:

  • What are the most likely systems to be breached?
  • How do security breaches occur?
  • Is there a specific asset that would be affected by a cyberattack?
  • When a data breach or leak occurs, what sensitive or personally identifiable information could be exposed?
  • Is there a way to mitigate this kind of attack?

Network Security Components

Security Information and Event Management (SIEM), firewalls, intrusion prevention systems (IPS), and network access control (NAC) are the four most essential components of network security.

However, there are several other methods of Preventing Data Loss (DLP); using antivirus and antimalware software; or securing emails, web pages, and other email applications.

Since almost all data and applications are connected to a network, network security is vital to protecting networks against data breaches.

Meanwhile, your reputation can be ruined and your business can go out of business if your network is hacked. However, businesses can prevent data theft and sabotage by installing a good network security system.

Also Read: What is IT Infrastructure?

Network Security Challenges

Network security has a number of advantages, but it also comes with a lot of challenges that one should know.

Network Security Challenges

Here are the top network security challenges in 2023:

Proliferation Of Misconfigurations

It is perhaps no secret that misconfiguration is among the most serious threats to network security. Over the next couple of years, 99% of firewall breaches will be due to misconfigurations instead of firewall flaws, Gartner says. However, businesses are put at risk every year by something so fundamental.

Networks get more complicated every month, making firewalls hard to manage. Hence, it’s challenging to manage products, optimize rules, and find gaps in firewall enforcement manually. However, there’s no way around automation.

A good solution gives you visibility and adaptive control over your networks and firewalls, not full automation. Because triage and escalation activities require nuance, a skill no machine can have, the goal should be to minimize human error rather than replace it.

Lack of Privileged Access Control

Using privileged access is simpler than hacking a network, so hackers love it. Because of this, 74 percent of breaches originate from privileged access abuse. However, the focus of most firewall management activities is granting access to the network.

Meanwhile, the result is that users are often given permission levels that are too high. Hence, it’s dangerous to make this mistake. An effective firewall must evaluate both risk and access in order to be effective.

User credentials alone don’t provide enough information about the legitimacy of an access request. Hence, the authentication process should take into account additional factors, like geolocation, IP addresses, time zones, etc.

Therefore, it is crucial to review privileged access regularly to minimize the risks of human error and reduce instances of security misconfiguration in a network increasingly accessed from remote locations.

Deficiencies In Tool Interoperability

Data sharing is difficult because there are too many tools. Hence, there is no such thing as a single zone in a network. In a software-defined network, there is exponential growth in complexity due to network rules and micro-segmentation.

Therefore, teams of security experts struggle to understand what individual metrics mean in context with one another in order to understand what is happening in the network. Consequently, adversaries can exploit gaps in the system and promote human error.

Despite their tools not integrating, some organizations think they’re safe because their SIEMs integrate. The SIEMs do not take into account manually executed attacks or anomalous activities specific to users, such as a marketing employee logging into a financial department’s system.

They focus only on system-generated signals. As per IT decision-makers, traditional SIEMs produce more data than staff can analyze, are not intuitive, and do not provide easy access to insights.

Security analytics platforms make data more accessible to more people so it can be consumed and analyzed efficiently. Natural-language search and analytics remove the need to learn a query language.

Data collection doesn’t require parsing, which eliminates the prerequisite knowledge normally required to bring different data sources together. A security analytics platform automatically enriches and correlates collected data to speed up the time it takes to discover unusual activity on the network.

Visibility Problems

A network’s visibility constantly changes as new devices join and leave it. Generally, security professionals can only look back over historical data to determine if a network had been secure at some point in the past – there is no way to tell if the network is secure or compliant today. Information like that isn’t useful.

Firewall rules need to be understood how and why they are configured, how they impact compliance and security postures, and the consequences of any changes.

However, many obstacles prevent companies from achieving this. Hence, these include insufficient IT staff, ineffective network management tools, the inability to visualize app delivery pathways, and a lack of IT at remote locations.

Automation allows the monitoring, mapping, and management of infrastructure changes. The impact of this kind of visibility reaches far beyond Security Operations Centers (SOC).

However, by enabling faster and more secure changes without breaking compliance, visibility supports business as a whole. Business solutions that drive competitive advantage through network security and risk management.

Out Of Date Controls

We can’t keep up with all the vulnerability patches we need to make, all the new apps we need to test and deploy, emerging threats we have to deal with, and of course, all the access requests we have to grant, request further authentication, and deny. Orchestration is the way to handle this volume and variety of work.

There’s a misconception that orchestration is the same as automation. Automation is when a system of tasks is arranged to function optimally within a workflow, like bringing security controls together and automating changes.

From policy design to implementation, orchestration should automate everything. Having instant snapshots of a network’s security posture from moment to moment should be possible with real-time monitoring from a live stream of data.

A unified database should store security details, and device rules and normalize security details. You should be able to control security controls from a single console.

Also Read: What is the Internet of Things (IoT)?

Why We Need Network Security?

Network security is keeping a network and its data safe. Keeping your network secure prevents cyberattacks and makes it usable and trustworthy. Organizations and users need multiple security solutions to protect them from malware and cyberattacks.

Wireless networks, computers, servers, and other devices connect to form a network. Potential attackers can take advantage of many of these devices. On a network or as software as a service, network security uses software and hardware tools.

It’s important to secure your network and data as networks get more complex and enterprises rely more on them. On these increasingly complex networks, security methods need to evolve.

Cyber Security Vs Network Security

Cyber Security Vs Network Security

The practice of cybersecurity involves securing systems, networks, and programs against digital attacks. PCmag simplifies the definition to:

Protecting data and systems in networks that are connected to the internet. These attacks aim to gain access to, alter, or destroy sensitive information; extort money from users; or interrupt normal business processes.

In line with the SANS Institute definition of network security, physical and software measures must be taken to prevent unauthorized access, misuse, malfunctions, modifications, destructions, or improper disclosures.

In this way, computers, users, and programs have access to a secure environment so they can perform their permitted critical functions.

Also Read: What Is GRC?

How Do You Improve Network Security?

There are a number of ways you can improve your network security, follow to ensure that your network is secure from unauthorized threats and protected against vulnerabilities.

How Do You Improve Network Security

Encrypt Your Data Strongly

There is an encryption feature on every wireless router. The encryption level and the level at which you make your data difficult to capture are up to you.

Older routers may only support Wired Equivalent Privacy (WEP). Security experts can easily crack WEP for years, so upgrade if you’re using it. WPA or WPA2 encryption is the best option. Hackers cannot sniff your data packets or decode your passwords with them, as it is much stronger.

Ensure Every Computer Has A Firewall

Your network is vulnerable to hackers without a firewall. Malware can also allow hackers to remotely control your devices. You can protect your system from these threats with a firewall.

Personal firewalls and network firewalls are the two main types. Generally, a personal firewall protects a single device. You can control the traffic to each device individually with personal firewalls, so you know what traffic each device will receive.

Firewalls protect entire networks, letting or blocking Internet traffic. Computers on your network usually connect to it through the router. By monitoring traffic in and out, it secures the whole computer system.

Keep Your Router Software Up To Date

Your router’s strength will also determine your network’s security. Without router updates, hackers could exploit new security vulnerabilities. You should always install router updates as they become available from the router manufacturer.

When new router updates are available, you’ll receive a prompt on your screen or in your email. Manually checking the router manufacturer’s website is also possible.

Network Limitation

It’s too common for people to take network security for granted. Ensure that your office team members do not have explicit access to the network, but make sure they are limited to the resources they need if they do need access.

Be careful managing wireless networks. If you set up a new device, always change default passwords and monitor who is connecting.

Also, you can restrict access to devices based on their MAC addresses. MAC addresses can prevent unauthorized wireless access.

Anti Virus Software

You may be at risk of virus attacks if you don’t update your routers and computers. You should install an antivirus program on your entire computer system, and you should make sure all updates are working.

Also Read: What Is Digital Transformation?

Why Is Network Security Important?

The importance of network security lies in protecting sensitive information and data from cybercriminals. Identity theft, asset loss, and reputational damage are all possible when hackers gain access to such data.

Why Is Network Security Important

These are four reasons why it is important to protect networks and data.

Managing Operational Risks

A network without adequate security risks disrupting an organization’s operations. Viruses, malware, and cyberattacks can compromise business and personal networks, preventing them from performing effectively. The majority of communication within and between businesses takes place through networks.

Personally Identifiable Information (PII) Poses Financial Risks

Businesses and individuals can both suffer from data breaches. It is the responsibility of organizations that handle PII to make sure that it is protected. It includes Social Security numbers and passwords.

Fines, restitution, and repairs for compromised devices can be very costly for victims exposed to cybercrime. An organization may also face lawsuits if its data is exposed or breached.

Intangible Property Risk

Theft of intellectual property is another costly problem that organizations face. A company can lose business and competitive advantage if its ideas, inventions, and products are lost.

Issues Of Regulation

A wide variety of government regulations cover aspects of network security, including data security regulations. Many organizations are focusing on instituting and sharing strategies on how to adapt to modern threats in order to improve network security.

Also Read: What Is Cyber Security?

Why Choose Us?

You can protect your networks from attacks and unnecessary downtime with a variety of tools, applications, and utilities. Network security solutions from Infratech provide centralized and simplified management of complex processes and provide robust network security throughout your organization.


How to Make A Network Secure?

  • Make sure your home network’s name and password are changed.
  • Secure your wireless network by limiting access.
  • Set up a network for home guests.
  • Enable encryption for your WiFi network.
  • Configure your router’s firewall to be on.
  • Don’t leave your home with a WiFi network on.
  • Make sure your router’s firmware is up-to-date.

What Is a Network Security Key?

Accessing a local area network requires a password or code. At home, you use one of these security keys to connect to your wireless network. By establishing a secure connection, network security keys prevent unauthorized access.

What Are the Common Threats to Network Security?

Among the most common threats are the following:

Infections with malware.

  • Infection by viruses.
  • Infection with spyware.
  • Adware.
  • The Trojan horse.
  • Worms.
  • Perform phishing attacks.
  • Phishing with a spear.

What Is Risk in Network Security?

Threats take advantage of vulnerabilities to cause loss, damage, or destruction of assets. A combination of threats and vulnerabilities equals risk. Know your system’s vulnerabilities and understand the threats out there to determine your level of cyber risk.

What Are Two Key Benefits Of Network Security?

Reduces Risk And Builds Trust

When it comes to large systems, security means security for everyone. The right network security will boost the confidence of your clients and consumers, and protect your business from legal and reputational fallouts in case of a security breach.

You will minimize the financial and business impact of a breach if it happens if you use a network security solution that is compliant with government and business regulations.

Maintain Confidentiality

You are responsible for protecting the sensitive information of your clients and customers. That same protection is essential for your business as well. Network security protects data and information.

Also Read: What Is A Blockchain?