The nexus between cyber security and national security is an increasingly critical concern, as cyber attacks impact countries’ governance, functionality, and public discourse. Cyber security, as an aspect of national security, now extends beyond the scope of military defence. It presently includes, inter alia, the safeguarding of physical infrastructure (servers, relay stations, endpoint devices), measures to protect digital data, private companies’ cyber defence, the regulatory supervision of dual-use cyber tools, and the training of the humans who are responsible for implementing all of these. In particular, as cyber attacks on critical infrastructure increasingly endanger national systems (public finance, health, energy, governance), there is a growing understanding that the protection of such critical infrastructure should be explicitly prioritised in national security strategies. As the nexus between national security and cyber security expands in scope and complexity, the conception of the cyberspace as a [fifth domain of human activity should transition into a broader paradigm of cyberspace as a critical substrate that now underlies much of human activity.

In an era where technology underpins nearly every aspect of modern life, cyber security has emerged as a cornerstone of national security. From protecting critical infrastructure to safeguarding sensitive government data, the ability to defend against cyber threats is vital for a nation’s stability and safety. A single cyber attack can disrupt economies, compromise defence systems, or erode public trust.

Why does cyber security matter?

Recent cyber attacks on Government sites show a surge in ransomware, defacement, and infrastructure targeting, in Sri Lanka and Europe, via China/Russia-linked groups. Key incidents include massive data deletion in Sri Lanka, attacks on European power/water infrastructure, and stealthy botnet activities against Asian and US entities

Cyber security refers to the practices, technologies, and processes designed to protect digital systems — such as computers, networks, and data — from unauthorised access, attacks, or damage. In simple terms, it is about keeping the digital world safe, much like locking your house to prevent break-ins. Cyber security matters because our lives are increasingly digital: governments, businesses, and individuals rely on technology for communication, finance, healthcare, and more.

When it comes to national security, cyber security is critical because nations depend on digital systems to function. A breach in these systems can lead to catastrophic consequences, from leaking classified information to disrupting essential services like power grids or military operations. Understanding this connection is key to appreciating why cyber security is a top priority for governments worldwide.

National security encompasses a nation’s ability to protect its citizens, economy, and infrastructure from internal and external threats. Cyber security is a vital component because it:

• Protects critical infrastructure: Power plants, water systems, and transportation networks rely on digital controls that are vulnerable to cyber attacks.
• Safeguards defence systems: Military operations use interconnected systems for communication, surveillance, and weaponry, all of which need protection.
• Prevents economic disruption: Cyber attacks on financial institutions or supply chains can destabilise economies.
• Maintains public trust: Breaches of government data, like citizen records, can erode confidence in leadership.
• Counters espionage: Nations face cyber espionage from adversaries seeking to steal sensitive information.

In short, a nation’s strength depends on its ability to secure its digital assets, making cyber security inseparable from national security.

Challenges in strengthening cyber security for nat. security

While cyber security is crucial, nations face several hurdles in implementing effective protections:

• Evolving threats: Cybercriminals and State-sponsored hackers constantly develop new techniques, outpacing traditional defences.
• Lack of coordination: Governments, private sectors, and international partners often struggle to collaborate effectively.
• Resource constraints: Investing in cyber security requires significant funding and skilled professionals, which some nations lack.
• Legacy systems: Outdated technology in government and infrastructure systems is vulnerable to modern attacks.
• Balancing privacy and security: Strong cyber security measures, like surveillance, can conflict with citizens’ privacy rights.

Addressing these challenges requires innovation, investment, and global cooperation to stay ahead of cyber threats.

The future of cyber security in nat. security

As technology evolves, so will the role of cyber security in national security. Key trends include:

• Artificial intelligence (AI): AI can detect and respond to threats faster than humans, improving defence mechanisms.
• Quantum computing: While promising, quantum computing could break current encryption, necessitating new cyber security protocols.
• International collaboration: Nations are forming alliances to combat cybercrime, sharing intelligence and resources.
• Cyber warfare strategies: Governments are developing offensive and defensive cyber capabilities as part of military strategy.

Protecting the economy from cyber threats

Considering the trends of organised crime, their collaboration with nation-States, and their willingness to leverage new technologies, future threats to the economy are likely to be from a merging of terrorism, political activism, and organised crime.

The increase in well-researched and coordinated threats means that organisations need to up their game with company-wide engagement with cyber security best practices and investment in information security personnel, policies, procedures, and systems.

Here are some of the top ways that organisations of all sizes can prepare for the current and coming challenges of the cyber threat landscape.

Threat intelligence

Cyber security systems need to work smarter, not just harder. Cyber criminals are using the latest innovations to part companies from their data and earnings, so it is vital that organisations do all that they can to spot those attacks from a distance.

With threat intelligence, chief information security officers and other stakeholders can proactively predict and prevent cyber attacks, which is by far the safest and cheapest way to deal with them.

With offensive cyber security, businesses use ethical hacking to identify vulnerabilities before cyber criminals do. They then take steps to mitigate or remediate problems without having to deal with an actual full-scale data breach led by a malicious actor.

Knowledge sharing and collaboration

For many, Internet of things technology has highlighted the fact that connected devices increase cyber risk. Essentially, organisations are connected via the software that they use, third parties that they rely on, their customers’ devices, and every link in the chain of the product or service lifecycle.

To protect individual businesses and the economy, it is necessary to share information. This means sharing knowledge about emerging threats and reporting data breaches even when there is no legal requirement to do so. With more information about threats, it is possible to determine patterns, spot vulnerabilities, and predict how and where the next attack might develop.

Continuous monitoring

Cyber security systems with AI can provide 24/seven/365 monitoring of all information systems. It is also capable of monitoring and dealing with several threats at the same time, which is more likely with the growing capabilities of cybercriminals and off-the-shelf malware services.

Cyber security training and awareness

Since social engineering, such as phishing, is a prime way that cyber criminals gain access to credentials, ignoring the human element when developing a cyber security system is fatal.

Organisations, particularly those part of critical infrastructure, must raise awareness of cyber security issues and the importance of information security. It is critical that every business has documented information security policies and that employees know who to report cyber security issues to when they arise.

Cyber security best practices that everyone in business should know and implement include:

• Organisational policy regarding social engineering
• Data protection procedures to protect credit card details and prevent identity theft
• Maintaining strong password hygiene 
• Multi-factor authentication
• Recognising phishing attacks 
• Updating systems and software
• Implementing basic network security 
• Creating incident response, disaster recovery and business continuity plans.

Conclusion

Cyber security is no longer just an information technology concern — it is a critical pillar of national security. From protecting critical infrastructure to preventing economic and military disruptions, robust cyber security ensures a nation’s safety and stability. Real-world attacks like Colonial Pipeline and SolarWinds highlight the stakes, while challenges like evolving threats and resource limitations show the work ahead. As technology advances, so must our cyber security strategies, incorporating AI, international cooperation, and innovative defences. By prioritising cyber security, nations can safeguard their citizens, economies, and futures in an interconnected world.

The future will demand proactive measures to protect nations from increasingly sophisticated cyber threats.

The writer is an international security analyst, intelligence data scientist and anthropologist

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The views and opinions expressed in this column are those of the author, and do not necessarily reflect those of this publication