How Does Network Security Work? Definition, Components, and Types

Network security is a critical aspect of safeguarding a company's data and resources across its network, protecting it from potential threats and unauthorized entry. The process involves developing a strategic defensive strategy that includes various technologies, devices, and processes to maintain the integrity, confidentiality, and accessibility of targeted computers.

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Network security involves preventing unauthorized access, misuse, and theft of the underlying networking infrastructure. To explain, for users, applications, devices, and users to work securely, a secure infrastructure must be built.

What Is Network Security Technology?

The process of developing a strategic defensive strategy to protect a company’s data and resources across its network is referred to as network security. It safeguards the company from any potential threats or unauthorized entry. No matter the size, sector, or infrastructure of the organization, network security solutions shield it from the escalating threat of cyberattacks.

Numerous technologies, devices, and processes can be included in network security. Though being a group of rules and configurations, you may need devices and hardware that are designed to protect computer networks and their data. Further, the network security software and hardware are used to maintain the integrity, confidentiality, and accessibility of the targeted computers.

Network Security Technology

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Which Comprises the Network Security?

There are three components of network security: integrity, confidentiality, and availability. The CIA triad is an established standard used when developing network security policies for any organization. Network architecture is getting more complex in a world where the Internet of Things (IoT) is the new norm.

Hackers who are constantly advancing and looking for new ways to identify and exploit vulnerabilities pose a constant threat to this system. There are vulnerabilities in a variety of areas, including users, locations, devices, data, applications, and other data. Even a brief period of downtime can result in significant losses.

The Foundational Elements of Network Security

Organizations typically choose a multi-layered strategy when looking for ways to improve network security. All network hardware, software, and policies related to network security should be designed to address each layer since attacks can target any layer of a network’s setup.
Check the following fundamentals of network security: 

1. Access Control

Access control enables organizations block unauthorized users and devices from accessing network. With access control, you can keep out potential attackers. It also restricts accessing the network to the set of resources defined for authorized users.

2. Security Identification

It is utilized to confirm the identities of users, processes, or devices that may be requesting access to the network using usernames and identity numbers.

3. Strict Authentication

It is applying strict procedures on customers logging into a network to verify their credentials. Authentication protocols allow for secure access to a network by verifying the identity of users, processes, or devices that may be requesting access. 

4. Accounting and Monitoring

Accounting and monitoring keep track of every action a user makes on the network, making it easier to distinguish between authorized and unauthorized behavior. With this data, organizations can quickly identify any suspicious activity and take necessary steps to secure their networks.

5. Physical Network Security

To stop unauthorized people from physically accessing parts like routers or cable cabinets, physical network security approach is followed. Locks, biometric authentication, and a variety of other tools are used to accomplish this.

6. Technical Network Security

Technical network security keeps all data on the network safe. It includes data entering the network, leaving it, or even transiting through it. This is necessary for two reasons: first, it safeguards data from both unauthorized users and malicious behavior on the part of employees.

7. Administrative Network Security

It is utilized to confirm the identities of users, processes, or devices that may be requesting access to the network using usernames and identity numbers.

Types of Network Security

There are multiple types of network security that are meant all for strengthening your security posture. Check them all to find the best type of network security that addresses your needs:

Application Security

Application security refers to the actions a developer takes to identify security flaws, fix them, and prevent them from occurring in the future. Applications can still contain flaws that are simple for attackers to exploit. Software, hardware, and procedures are all included in application security to close any remaining vulnerabilities.

Data Loss Prevention (DLP)

Taking precautions to stop employees from sharing data outside of a designated network is part of data loss prevention. It guarantees the secure transmission of all data. These measures may include the use of strong encryption technology, the implementation of data access policies, and employee training to ensure everyone is aware of their obligations in relation to handling sensitive information and avoids misusing them.

Once any violations are detected DLP applies remediation with alerts and encryption to stop end users from sharing sensitive data.

Email Security

Email gateways are security gaps that frequently lead to a breach. Emails are the main source of phishing attacks when they are honed with social engineering techniques. The risk of such attacks can be reduced with email security.

Such malicious emails can be stopped from reaching recipients by using a secure email gateway that can be installed on-premises or in the cloud. Solutions for email encryption provide defense against legal violations or data loss.

Firewalls

An internal network and an external network, such as the internet, are separated by firewalls. They control the network’s incoming and outgoing traffic using a predetermined set of protocols. The first line of defence is a firewall. Firewalls stop data that is not in accordance with a company’s established set of protocols from passing through.

Final Thoughts on Network Security

Network security is one of the pillars of any organization security. It serves as the gateway guard for your systems, applications, and data. No one can deny that cybersecurity is a major challenge for all businesses and institutions due to the fast-evolving techniques of cyberattacks and malicious activities.

Alnafitha IT has a partnership with a wide range of cybersecurity providers. So you can find more about those solutions that handle your security needs.

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