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What Is Network Security?

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Nearly every business relies on computer networks to store customer records, process payments and develop new ideas. With so many organizations relying on these assets, the need for network security has never been greater, making this one of the more attractive career paths available within the Information Technology (IT) sector. Keep reading to learn more about what network security professionals do and how you can prepare to become one.

Network Security Basics

Network security focuses on securing computer networks and protecting data in transit. If you enter this industry, you can expect to spend much of your time configuring firewalls, routers, and network switches. Network security professionals also use security protocols, encryption, virtual private networks (VPNs) and other tools to prevent unauthorized access to data while it’s being transmitted. In short, network security protects a company’s IT assets and ensures that every business has access to reliable computer systems.

The Importance of Network Security

Strong network security is essential, as just one incident can damage a company’s reputation or expose it to significant legal liability. Security issues are also extremely costly to address. For example, the global average cost of a single data breach is $4.4 million as of September 2025. This includes the cost of detection efforts, post-incident response, system downtime, legal fees and lost business.

In some industries, network security incidents can even put lives at risk. For instance, network issues can make it difficult for physicians, nurses and other health care providers to deliver quality care to their patients. As a result, skilled network security professionals are in high demand.

Careers in Network Security

The network security field is broad, so there are many potential job titles:

Network security engineer
Security administrator
Vulnerability researcher
DevSecOps engineer
Cloud security analyst

Almost all organizations use computer networks, so there are opportunities available in every industry, from banking and finance to manufacturing and legal services. Local, state and federal law enforcement agencies also rely on network security professionals to keep their IT assets safe.

Each job title comes with different duties, but they all require similar foundation of skills. On the technical side, you’ll need the ability to work with operating systems, cloud technologies and networking protocols. Network security professionals also use soft skills to perform their duties. Soft skills are the personal qualities that help you remain effective in your job. For example, a network security professional needs to have excellent communication and problem-solving skills.

Preparing for Your Network Security Career

If you don’t have experience working with computers, Interactive College of Technology can help you gain the Information Technology skills and knowledge needed to build a rewarding career in network security. We offer two options: a full Associate of Science degree and a streamlined diploma program, both of which come with lifetime career placement support. No matter which option you choose, you’ll have the opportunity to earn valuable Microsoft and CompTIA certifications.