What is Network Security? Definition, Types, & Importance

What is network security? Security and networking go hand in hand. A system’s security network is of great importance for any organization that wants to protect its confidential data.

Without proper network security, data can be compromised in various ways. Not only could confidential information, such as financial records, passwords, and medical histories, be stolen, but disruption or destruction of the network can occur due to attacks from malicious programs.

To protect against threats, it’s important to establish and follow authorized procedures. Taking comprehensive and appropriate measures to secure networks and security systems is crucial for optimizing digital operations.

What Is A Secure Network

A secure network is a system of computers connected to protect data and prevent unauthorized access. It uses different strategies to maintain security, such as authentication, encryption, and firewalls. Each layer of security ensures that only the right people get access to the information they need. The use of a secure network is especially important for businesses that store sensitive information or handle credit card transactions.

Types of Network Security Protections

A network security system is an essential element of IT network security. It protects organizations from malicious attacks and unauthorized access to their networks. Here are the different types of data and network security protections that can help keep your data and networks secure:


A firewall provides an essential layer of security for any network, large or small. It filters internet traffic to prevent unauthorized access, safeguarding against malicious activity and staying one step ahead of cybercriminals. A firewall ensures that only legitimate traffic is allowed through the system.

Network Segmentation

Network segmentation is a smart approach to enhance security in large networks. It involves dividing the network into smaller segments, allowing organizations to apply specific security rules to each segment.

This prevents the risk of a single point of failure. If one segment is compromised, others remain protected. With network segmentation, organizations can ensure their network’s overall safety and security against external threats.

What is Access Control?

Access control is essential to organizing and protecting the data stored in a network. By identifying who should have access to particular areas, organizations can reduce the risk of information being stolen or tampered with by unauthorized personnel.

To keep networks safe, it’s important to control access to sensitive systems. This means allowing only authorized personnel with valid credentials to enter and limiting their access to specific information. Implementing access control measures ensures network security while granting users the necessary access they require.

Remote Access VPN

A virtual private network (VPN) is a powerful tool that allows individuals to quickly, easily, and securely connect to a remote network from any device connected to the internet. Through encryption, VPNs can protect user data from malicious actors by ensuring that all traffic between source and destination points is secure.

By creating an additional layer of protection, these networks ensure further safety for users against those seeking to intercept their information. In this way, having a secure VPN connection allows people to feel confident that their precious data is safe from prying eyes.

Email Security

Email security is an essential tool that shouldn’t be overlooked. To ensure your email communications are kept safe, it’s important to have up-to-date email security measures in place.

This includes using two-factor authentication and strong passwords, as well as using a secure mail gateway to detect malicious content. With these precautions in place, you can rest assured that you will be protected against any potential threats entering your system via email.

Data Loss Prevention (DLP)

Implementing Data Loss Prevention (DLP) systems is an effective way for organizations to protect their confidential data. By utilizing encryption technologies, companies can ensure that only authorized personnel can access sensitive information. At the same time, data classification means that only those given permission will be able to view the contents of a document.

Additionally, content monitoring is used as a preventative security measure, alerting administrators when sensitive information is sent outside its designated destination.

Intrusion Prevention Systems (IPS)

An IPS is designed to monitor suspicious activity on a network and then block that activity before it can do any harm.

They are created specifically to protect against malware, zero-day threats, DoS attacks, and brute force attacks, which endanger business assets by introducing risks like system downtime and data theft.

Hyperscale Network Security

Hyperscale network security is indispensable for cloud users seeking uncompromising protection against cyber threats.

Developed by industry leaders, it adopts a holistic approach to safeguarding the cloud infrastructure, with solutions such as micro-segmentation and encryption providing robust defenses against malicious activities.

Cloud Network Security

As the internet and cloud technologies become pervasive in our lives, it is increasingly important for businesses to take effective steps to ensure their cloud networks are secure.

Various methods have been developed to protect these networks, such as data encryption, authentication, digital signatures, malware scanning, and firewalls. Through this approach, a company can be sure that only trusted users have access to its cloud networks.

Furthermore, these security measures are constantly monitored and updated to stay ahead of any new threats that may arise.

Network Security Policy Best Practices for 2023

As technology continues to evolve and the digital world expands, the need for strong network security policies is becoming increasingly important. Organizations must ensure that their security systems meet industry standards to protect their data and networks against malicious threats. While there are many practices organizations can adopt to enhance their network security, it’s essential to familiarize yourself with the best practices for 2023.

Multi-Factor Authentication (MFA)

Multi-Factor Authentication (MFA) is a powerful tool for keeping your organization’s accounts secure by requiring an additional form of authentication before granting access to systems or files. It adds an extra layer of protection beyond a username and password, making it much more difficult for unauthorized users to gain access. Additionally, MFA helps prevent credential theft and phishing attempts, as passwords are not shared or stored in plaintext.

Here are some ways you can implement MFA in your organization:

  1. Two-Factor Authentication (2FA): This is based on a combination of something the user knows (e.g., a password or pin) and something they possess (e.g., their smartphone). The user must provide both forms of authentication to gain access.
  2. Biometric Authentication: This requires the user to provide a fingerprint or retina scan for authentication. This can be combined with 2FA to make it even more secure.
  3.  Multi-Factor Identification (MFI): MFI combines multiple methods of identification into one process, such as providing both a password and a passcode that is sent to their cell phone
  4. Token-Based Authentication: This requires the user to input a token code generated by a physical device or software application to gain access. The code changes each time it is used, making it much harder for hackers to gain access.

Security Awareness Training

Security awareness training is necessary for any organization looking to ensure their employees stay up-to-date on the latest threats. Through security awareness training, employees can be taught how to recognize common signs of malicious activity and know what steps to take if they suspect an attack. Training should include phishing attempts, identity theft, malware detection, and password management.

Training should include topics such as:

  • Recognizing phishing emails, SMS messages, or other malicious attempts to access personal accounts and information
  • Knowing how to safely use the internet and keep data secure when browsing online
  • Understanding the importance of using strong passwords, changing them regularly, and not using default logins
  • Identifying potential threats, such as malware, ransomware, or other malicious attacks

Cybersecurity Risk Assessment

Cybersecurity risk assessments help organizations identify vulnerabilities in their systems before they become an issue. By conducting regular risk assessments, companies can better understand their security posture and develop strategies to address any areas of weakness. Additionally, periodic reviews will ensure that all systems meet the latest industry standards and adjust accordingly.

Here are some key steps to consider when conducting a cybersecurity risk assessment:

  1. Identify and document all assets that are connected to the network
  2. Establish an understanding of the associated risks for each asset
  3. Determine likely threats that could affect these assets
  4. Assess existing controls and policies in place
  5. Develop and implement a plan to mitigate identified risks
  6. Monitor the system to ensure that the controls remain effective

Device Management Solution

A device management solution is important to any organization’s security policy. With the increasing number of connected devices, organizations must be able to control and monitor all of their endpoints to protect against malicious activity. Device management solutions give administrators visibility into all network components, allowing them to identify and address any potential threats quickly.

Some device management solutions can include features like asset management, patching and configuration management, remote access control, network traffic monitoring, and more. These solutions allow administrators to automate security policies across the entire organization. Additionally, they can help organizations maintain compliance with industry standards while ensuring that all devices are secure.

Security of Backup

Protecting backups from unauthorized access is essential for ensuring data integrity. Organizations should ensure that their backup systems are encrypted and stored safely offsite to prevent any destruction or tampering of sensitive information. Moreover, regular testing should be conducted to ensure proper functionality.

Here are some ways to endure backup security:

  • Use strong encryption for backup data. This should be done not only when transferring the data offsite but also when storing it in storage media.
  • Perform regular tests of the backup system to ensure that backup copies are valid and can easily be restored.
  • Store backups in a safe place away from the production environment.

Business Continuity Plan

Business continuity plans are vital for keeping operations running in the event of an attack or a natural disaster. By having an established plan, organizations can quickly respond to any disruption to minimize downtime and financial losses.

Plans should include comprehensive measures like:

  • Regular backups of all important data, software, and hardware.
  • Establishing a secure network that’s regularly monitored. This should include firewalls, encryption methods, authentication protocols, and other necessary measures to ensure the safety of your data.
  • Securing physical access points like windows, doors, and gates with locks or security systems.

Effective Security Policies

Creating effective security policies is key to ensuring your organization’s network remains secure against potential threats. Policies should be tailored to each company’s specific needs while meeting industry standards. In addition, they must be regularly updated as new technologies are implemented and threats evolve.

Some security policies to consider include the following:

  • Establishing and enforcing clear rules of acceptable use and restricting user access to sensitive networks, systems, or data.
  • Enforcing password complexity and regularly updating passwords across the network.
  • Deploying antivirus software to block malicious code and detect zero-day attacks.

Vendor Management Program

Vendor management programs ensure that third-party entities follow proper security protocols when handling sensitive data on behalf of the organization. These programs help identify potential risks associated with vendors and ensure that they are properly screened before being granted access to an organization’s systems.

A couple of vendor management protocols that businesses can use to ensure the security of their networks include:

  • Establishing baseline security requirements for vendors – Organizations should always establish a set of baseline security requirements that must be met before any other vendor activities can begin.
  • Implementing contractual agreements – These contracts should increase security requirements for vendors if needed and must be signed before any access to the network is granted.
  • Conducting periodic security assessments – Organizations should conduct periodic security assessments of vendors to ensure that they meet the required security standards.

Cyber Insurance

Cyber insurance can be invaluable for many organizations, providing flexibility and the means to recover financial losses that may occur due to undetected security breaches. Not only does it cover legal fees, public relations costs, and damage to reputation, but more comprehensive plans may even assist with notification in the event of data theft.

Furthermore, these policies can help restore much-needed composure since they offer a layer of protection against losses related to information or identity theft that may arise from malicious or accidental acts. As the risk of catastrophic data loss continues to grow, such policies become increasingly important for businesses, non-profits, and other organizations.

Incident Response Plan (IRP)

The IRP should include the necessary steps for identifying, containing, and responding to threats and guidelines for reporting suspicious activity. By having an established plan, organizations will be better equipped to deal with any cyberattack.

For example, you should have a policy that outlines how to detect suspicious activity on the network. This can include monitoring network traffic and analyzing logs for any suspicious behavior. Besides, having the right tools and processes in place is important to secure your network adequately.

In Conclusion

Understanding the definition of network security, its different types, and its importance in our increasingly digital world is essential to staying safe. As your business grows and changes its needs, having the kind of team you can trust with your security protocols is also critical.

At CXI, we understand the nuances of network security and keep up with emerging threats, so you don’t have to think twice about your network’s defenses. We offer a range of services, including cybersecurity, network security, and cloud security, to ensure your organization is compliant and secured against the latest threats. If you’re interested in learning more about how our network security services can help protect your data for future endeavors, contact us today!