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What is a Domain in Cybersecurity? Top 10 Cybersecurity Domains

domains of cybersecurity

In today’s modern era, cybersecurity plays an important role. And today we will learn about the domains related to cybersecurity in this article, but before proceeding, let us tell you what the importance of cybersecurity is.

Cybersecurity protects computer systems, back-end systems, & end-user applications, in addition to the data they stored;

Similarly, physical safety protects physical property & people from criminal activity or unintentional harm. Its objective is to keep cybercriminals, nasty insiders, & others from gaining access to, hurting, disrupting, or shifting IT systems & applications.

What is a Domain in Cybersecurity?

Why is it significant for those who are involved in a career in cyber security to recognize the top industries & domains? Well, one cause is, when you are looking for a job within cybersecurity, it’s constantly good to know which industries are hiring the most professionals.

Domains in cybersecurity are also vital to know so that you know what familiarity is expected of you if you come in into the field of cybersecurity.

Top 10 Best Domains of Cybersecurity

Security Management

The first domain we are going to talk about is Security Management; it is more concerned with people and processes than computers.

By the way, security management has been considered one of the most overlooked domains, which is a very bad thing; however, it is important to always keep security management on top.

Because the whole thing we do in other domains means nothing without it. Security management is made up of a number of tasks:

  • Risk assessments, which is the procedure we utilize to recognize risks to the organization & systemically make out the technique to combat those risks, generally relying on input from professionals in the other domains
  • Overseeing the procedures for other safety functions to make sure those align with business/operations procedure
  • Change management processes & events in place
  • User safety awareness training

Security Engineering 

Security engineering generally refers to two key sub-domains: network safety and computer operations safety. This domain is where your technological proficiency is put to use in securing both the network & hosts from attacks. It’s in this field that we lump the following:

  • Firewalls
  • Router/switch safety
  • Intrusion detection & avoidance systems (IDS/IPS)
  • Email Filtering
  • Susceptibility scanning

Security Operations

The Security Operations domain is where we observe all of the tools we talk about in the Security Engineering domain.

Most SOC (Security Operations Center) places are going to work in this domain, as the name described, but they need to have an excellent understanding of most of the other domains to be capable to carry out their job functions well. 

Business Continuity

This cybersecurity domain focuses on reinstating business operations after disastrous incidents, such as a natural tragedies.

This comprises disaster recovery & business permanence plans and events. Certainly, we must also ensure we’re occasionally reviewing these strategies in addition to testing them.

This domain turns around the perception of which functions of the business are very important to the endurance of that business.

Once we’ve recognized this significant task and linked systems, we must put in place a process to make sure they are workable as soon as possible, with a small data loss as feasible, in the incident of terrible failures.


As you can possibly see, the domain focuses on ensuring the business have the suitable safety controls in place required to meet acquiescence with the legislation & system appropriate to the business.

This domain generally contains knowing those policies to the position that we can apply suitable safety controls, & then frequently audits those controls. 

Whether those audits are carried out in-house or given to the intermediary assessment organization is generally outlined in the system, but in spite of who is carrying out the inspection, it will be part of this domain.

Now, it’s significant that the domain has a hand in driving the safety management domain we mentioned above.

Ethical Hacking (VAPT)

Ethical hacking is one such domain of cyber security which is very popular. By ethical hacking, we mean that it is nothing more than simply entering any system operating system, android device, and ios device.

This is a legal process to tamper with any system and many organizations use it to catch risky hackers. This officially permitted authorization to interfere with the system assists an organization to recognize its fault in advance & make it safer over time.

A method similar to that of a real-time nasty hacker is used slowly to examine the amount of damage made to the system.


Cryptography is one domain that several security workers look to struggle with; however, it is possibly one of the most overhyped domains.

There are lots of hypotheses that go into cryptography, but in actual use, it’s generally as easy as tapping a button on your keyboard. Cryptography is used to defend the privacy, integrity, legitimacy, & non-repudiation of the data to which it is applied.

This is an astonishing field that runs in the similarity of a lock & key in the actual globe. In normal situations, a message is sealed with a key (encrypted) and sent over the suspected network. The receiver then opens or (decrypts) that lock to read the original message.

During this process, if a hacker tries to steal or listen to this message by hiding in some way, then this message will replace the original message with random characters and his attempt will fail.

It is made of symmetric and asymmetric encryption where the key can be mutually fixed or different by the two communicating people. Cryptanalysis is a different field where we have to examine the algorithm used to encode the message.

Physical Security and Malware Analysis

Physical security provides information about measures designed to ensure the security of IT assets such as loss and unauthorized physical access to any facility, equipment, personnel resources, and assets.

Suggests measures to avoid and avoid potential hazards to all such properties such as theft, fire, and other physical hazards including natural calamities. A usually unnoticed domain, it refers to all the controls that must be used for the physical hardware within the scope:

  • You have to make sure there is there a surround of our facility that forces persons to enter & exit at a properly controlled point.
  • It is necessary to have a security guard at every entry of the business, check that
  • Are data centers safe to allow physical access to the server only to official persons?
  • Whether an appropriate HVAC system is in place

The execution of both hardware & software systems to lock the network or infrastructure from unnecessary access, disruptions, and misuse is recognized as network security. Network security is significant for protecting an association’s assets from both outer and inner attacks.

Malware is basically a piece of a program that is planned to carry out operations except for reutilized work. This can be making lots of folders and files till the system got crashed, for example.

But, domain malware examination deals with strategies & plans that can sense & avoid this poor program from entering our computers through means like USB sharing, mailing add-ons, or file transfer.

It can also comprise the setting up of anti-malware, making certain to separate the devices & recover them once they’re contaminated.

Intrusion Detection & Avoidance

Intrusion can be described as an action on a mutual network where an illicit individual tries to be a host of it. This may include a flurry of ICMP pings (also known as the ping of death) through susceptibility scans of the network.

Simultaneously, there is another type of Denial-of-Service interruption on the network. To prevent and detect this properly, we have an intrusion and prevention system in place, the system works continuously for 24 hours so that any kind of network anomalies can be checked and avoided.

Software Development Safety

Software development runs into some issues regarding internally developed applications or systems:

  • Offering appropriately protected coding for developers
  • Carrying out code analysis on innovative code (whether it be fresh applications or updates to existing applications)
  • Overseeing development procedure and process
  • Knowing updated application aspect needs & their connotation on the safety of the application


The requirements of good cybersecurity measures are established by recent high-profile security breaches of organizations, which resulted in the loss of extremely sensitive user information, causing permanent financial and reputational breaks.

Kevin James

Kevin James

I'm Kevin James, and I'm passionate about writing on Security and cybersecurity topics. Here, I'd like to share a bit more about myself. I hold a Bachelor of Science in Cybersecurity from Utica College, New York, which has been the foundation of my career in cybersecurity. As a writer, I have the privilege of sharing my insights and knowledge on a wide range of cybersecurity topics. You'll find my articles here at, covering the latest trends, threats, and solutions in the field.