Five critical national infrastructure premises

So, we all know that the critical national infrastructure sets the base for the functioning of a society and economy. So, there are multiple sectors of critical infrastructure given below

  • Chemical sector

The chemical sector is an integral component for critical infrastructure that manufactures the chemicals upon which other wide ranges of critical infrastructure rely.

  • Transportation system sector  

The transportation sector depends on two things, which are subsectors and modes. It includes a variety of support services. In this process, risk management is also involved.

  • Manufacturing structure  

This part is crucial for economic prosperity and continuity. So, a direct attack on certain elements could disrupt essential functions.

  • Energy sector  

The energy sector fuels the economy of the 21st century because, without the energy, supply health and welfare get threatens. So, the economy of the country cannot function.

  • Information technology centre

This sector is central to the nation’s security, economy, and public health. Private citizens are seemingly increasing dependence upon the information technology system.


The national infrastructure could be very well threatened by hostile states, cybercriminals, terrorists, or criminals for disruption. It represents a strategic interest in foreign policy. While critical national infrastructure can be characterized as limited and often aspirational. Besides, the emergency services police and military personal also face a high level of threats. The national cybersecurity centre is growing rapidly because of the enhancement of technology.


There are various natural hazards such as flooding, severe weather, and storms which can also disrupt day-to-day functioning. With the continual diversification and evolution of threats and hazards, it is mandatory to build the capable UK’s infrastructure. This will help in recovering from a range of possible events.

Security approach  

  • Resistance: Concerns direct physical protection and this is ensured by covering and preventing damage or disruption. This executes the vulnerability through cybersecurity measures.
  • Reliability: This ensures the capability of the infrastructure to mitigate damage from any event.
  • Redundancy: It is the adaptability of an asset to ensure the availability of the backup installations.
  • Response and recovery: The ability of an organization to rapidly and, effectively respond and recover from disrupted events.


So, critical national infrastructure has some responsibilities, which are given below:

Infrastructures owners and operators  

The process of day-to-day operating of critical infrastructure is the responsibility of owners and operators.

Emergency services  

These services identify and assess the likelihood of the impact of potential operators

Government agencies  

For instance, the protection of critical infrastructure ensures protection of the businesses and organizations.


The regulatory process supports the government by ensuring relevant legislation and regulations. Building regulations can intervene and require to build to meet particular securities.


By reading out these particular points of critical national infrastructure, we realize that without these obligations, the economy of the country cannot process. So, these parts are essential for the security of the critical infrastructure.