Introduction to Cybersecurity – Cybersecurity Fundamentals


Mobile banking, online shopping, and social networking have all become possible as a result of corporations and enterprises using the Internet. While it has provided us with several options, it is not entirely safe because hackers take advantage of its anonymity. To protect oneself from today’s cyber threats, you’ll need a thorough understanding of cybersecurity. This essay will assist you in understanding the principles of cybersecurity.


Take a look at the topics discussed in this post on cybersecurity fundamentals:

  • Cybersecurity’s Background
  • What is the definition of cybersecurity?
  • What is the significance of cybersecurity?
  • The Triad of the CIA


Cybersecurity’s Background

Worms, viruses, trojan horses, spyware, and malware were not even mentioned in standard information technology (IT) jargon forty years ago. The development of viruses was the catalyst for the creation of cybersecurity. But how did we end up here in the first place? The origins of cybersecurity can be traced back to a study effort. The first computer “worm” was built in the 1970s by Robert Thomas, a researcher for BBN Technologies in Cambridge, Massachusetts. The Creeper was the name of the creature. “I’M THE CREEPER: CATCH ME IF YOU CAN,” said the Creeper, who attacked computers by jumping from system to system with the message “I’m THE CREEPER: CATCH ME IF YOU CAN.” The first antivirus software was built by Ray Tomlinson, the inventor of email, who created a replicating program called The Reaper, which would track down Creeper and delete it.


In late 1988, a man named Robert Morris had an idea: he wanted to see how big the internet could grow. He accomplished this by writing software that traversed networks, infiltrated Unix terminals, and cloned itself. The Morris worm was extremely aggressive, slowing systems to the point where they were unusable. He was the first individual to be found guilty under the Computer Fraud and Abuse Act. Viruses were deadlier, more invasive, and more difficult to manage from that point forward. It ushered in the era of cybersecurity.


What is the definition of cybersecurity?

Cybersecurity is a set of technologies, processes, and practices aimed at preventing attacks, damage, and illegal access to networks, computers, programs, and data.

The curriculum of the Course

Course on Cyber Security

The phrase “cybersecurity” refers to methods and procedures for safeguarding digital information. On an information system, the data is stored, transported, or utilized. After all, data is what a criminal seeks. The network, servers, and computers are merely conduits for data. Cybersecurity that is effective decreases the danger of cyber-attacks and protects organisations and individuals against illegal use of systems, networks, and technology.

People, processes, and technology are the three pillars of a strong cybersecurity deployment. This three-pronged strategy protects businesses from both highly orchestrated attacks and frequent internal dangers like unintentional breaches and human error. As attackers get more innovative, it’s more important than ever to define cybersecurity and grasp cybersecurity fundamentals.


What is the significance of cybersecurity?

The following are some of the reasons why cybersecurity is so vital in today’s digital world: The sheer volume of dangers is steadily increasing with each passing year. According to a McAfee estimate, cybercrime is now worth over $400 billion, up from $250 billion two years ago. Businesses might lose a lot of money as a result of cyberattacks. A data breach can cause irreparable reputational damage to a company in addition to financial losses.

Cyber-attacks are growing increasingly damaging these days. Cybercriminals are becoming increasingly adept in their methods of launching cyberattacks. Organizations are being forced to take better care of the personal data they hold as a result of regulations like GDPR.

Because of the aforementioned reasons, cybersecurity has become a significant aspect of the business, and the focus today is on building suitable reaction strategies that minimize the impact of a cyber assault. However, an organization or individual can only design a proper response strategy if he or she understands the foundations of cybersecurity. Enroll in our master’s degree in cyber security to become an expert.


The Triad of the CIA

The CIA trinity (confidentiality, integrity, and availability) is a concept that enterprises and organizations use to develop their security policies. In technical terms, cybersecurity refers to safeguarding data against unwanted access, alteration, or deletion in order to ensure confidentiality, integrity, and availability.

Cybersecurity Fundamentals

Let’s have a look at these components and some of the information security mechanisms in place to ensure their protection. Confidentiality is one of the most important aspects of cybersecurity. Confidentiality refers to the protection of data from unauthorized access. It also entails attempting to keep the identities of those who are permitted to share and maintain data private and anonymous. Cracking inadequately encrypted data, Man-in-the-Middle (MITM) attacks, and revealing sensitive data are all common ways for secrecy to be jeopardized.


The following are examples of standard measures to ensure confidentiality:

  1. Encrypting data
  2. Authentication using two factors
  3. Verification of biometrics
  4. Tokens of security
  5. Integrity

Information integrity relates to preventing unauthorized parties from altering it. Information and programs can only be updated in a specific and permitted way, according to the law. Turning a computer into a “zombie computer” and inserting malware into web pages are two challenges that could jeopardize integrity.


Integrity is ensured using standard measures such as:

  1. Checksums in cryptography
  2. Making use of file permissions
  3. Power supplies that aren’t disrupted
  4. Backups of data
  5. Availability

The term “availability” refers to the ability of authorized parties to access information when it is needed. Data is only valuable if it can be accessed by the appropriate people at the right time. DDoS attacks, hardware failures, programming errors, and human errors can all cause the information to become unavailable.


The following are standard measures to ensure availability:

  1. Data backup to external discs
  2. Putting up firewalls
  3. Having a power supply backup
  4. Redundancy of data

All cyber-attacks have the potential to jeopardize one or more of the CIA’s three pillars. To keep your information safe, confidentiality, integrity, and availability must all function together. As a result, it’s critical to comprehend what the CIA Triad is, how it’s utilized to create and implement a quality security policy, and the numerous ideas that underpin it.


How much do positions in cybersecurity pay?

Companies are paying more than ever to hire highly qualified cybersecurity personnel to defend their most sensitive assets, thanks to the widely reported success of big global cyber-attacks like WannaCry and Adylkuzz. Top cybersecurity career roles pay somewhere between $100,000 and $210,000 on average.