Computer Network Defense Analysis: A Proactive Approach?

Computer Network Defense Analysis: A Proactive Approach?

 By Charles Joseph | Cybersecurity Advocate
 Last update: November 25, 2023

Computer Network Defense Analysis involves reviewing and assessing the security of a computer network system. It’s a process used to identify and counteract threats, ensuring the safety of your network’s data. The goal here is to detect potential vulnerabilities or irregularities that might allow unauthorized access or data theft. Information gathered from this analysis is typically used to improve the network’s defenses, making it more resistant to potential cyber-attacks.

Computer Network Defense Analysis Examples

1. Corporate Network Traffic Monitoring

In a corporate setup, the computer network can often be the target of various cybersecurity threats. One day, the company might observe an unexpected increase in network traffic from a specific IP address. Viewing this as a potential threat, they initiate their Computer Network Defense Analysis procedures.

The unusual network traffic might indicate an attempted security breach or a distributed denial-of-service (DDoS) attack. The information collected during the analysis allows the company to understand the nature of the threat better. By identifying the specific IP address causing the traffic flood, they can effectively counteract the threat by blocking this IP or monitoring it for further suspicious activities.

Next, the company uses this incident as a stepping stone to enhance their overall network security. By recognizing potential danger, they acquire the necessary knowledge to prevent similar issues in the future. The improvement may include changes to firewall settings, installation of advanced intrusion detection systems, or even employee education on cybersecurity issues.

2. Online Retail Store Security Enhancement

An online retail store relies heavily on its computer network for business operations. From product display to order processing and customer interaction, everything is conducted digitally. Given the sensitivity of the data involved, such as personal information and credit card details of customers, securing the network becomes a crucial requirement.

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As part of their Computer Network Defense Analysis, the retail store continuously checks its website for security vulnerabilities. During one such analysis, they discover that pages containing customer information are not as secure as they should be. This potentially leaves customer data vulnerable to hackers who might exploit these weak points.

Swift action is taken to address the found vulnerability. The company strengthens security on those pages by applying more robust encryption methods and possibly, multi-factor authentication. By doing so, not only does the online store secure its customer data, but it also enhances customer trust by demonstrating that it values and protects customer information responsibly.

3. University Network Integrity Protection

A university typically maintains a complex computer network to support various educational and administrative activities. This can include everything from student registration and grading system to research databases and library catalogs. Protecting the integrity of the network and the data it contains is of paramount importance.

During their regular Computer Network Defense Analysis, the university notices that certain files are being accessed during odd hours. Suspect of an inconsistency, they decide to investigate this further. They find that a student is attempting to gain unauthorized access to these files, likely in the search for sensitive information or for malicious intent.

Determined to preserve the security of its network, the university immediately addresses the issue. They tighten access controls, possibly requiring additional credentials or implementing stronger user authentication methods. In this way, the university maintains its network integrity, ensuring that unauthorized access attempts in the future are detected and avoided from the outset.


In essence, Computer Network Defense Analysis is a pivotal tool in maintaining the security and integrity of a computer network. Through tracking irregularities, identifying threats, and implementing stronger security measures, it aids in creating a safer and more stable digital environment.

Key Takeaways

  • Computer Network Defense Analysis involves reviewing and assessing the security measures of a computer network.
  • This process helps to identify security threats and counteract them effectively.
  • The primary goal is to detect potential vulnerabilities or irregularities that might allow unauthorized access.
  • The findings from this analysis are used to improve the networks’ defenses, making it more resistant to cyber attacks.
  • Examples include monitoring unusual traffic in a company, strengthening website security in an online store, and maintaining university network integrity.

Related Questions

1. What is the first step in Computer Network Defense Analysis?

The first step is often network monitoring, wherein network activities are closely watched to detect any anomalies or suspicious behavior.

2. Who carries out Computer Network Defense Analysis?

This process is carried out by cybersecurity professionals who specialize in network security and are equipped with the necessary understanding and tools to analyze computer networks.

3. Can Computer Network Defense Analysis prevent all cyber attacks?

While this analysis is a potent tool in guarding against cyber attacks, it cannot guarantee absolute protection from all threats. Cybersecurity is an ongoing process that requires constant vigilance and adjustments as new threats emerge.

4. Are small businesses also in need of Computer Network Defense Analysis?

Yes, no matter the size of a business, having a reliable and safe computer network is crucial. Small businesses, although they may attract fewer threats than large corporations, are still at risk and should take necessary precautions.

5. What skills are needed for carrying out Computer Network Defense Analysis?

Required skills include proficiency in networking, knowledge of various operating systems, ability to use network security-related software, critical thinking, and strong problem-solving abilities.

"Amateurs hack systems, professionals hack people."
-- Bruce Schneier, a renown computer security professional