Your Ultimate Guide to Cyber Security

Applied-Education-Blogs

Published: July 2025

Digital scams and cyber attacks have been prominent in this digital age— it’s important to recognise these more than ever. These don’t only affect individuals, but also businesses and organisation. These threats are rapidly growing, and so is the demand for cyber security.

Whether you're an individual looking to upskill or a small business owner wanting to strengthen your digital defences, this blog breaks down what cyber security is, what you’ll learn in a course, potential career outcomes, and how to get started in 2025 — with flexible micro-credential course available across Australia, and a fee-free training in WA.

Table of Contents

What is Cyber Security and Why is it Important?

Cyber security refers to the practice of protecting digital data and information, networks, and computers from attacks, damage, or unauthorised access. In simple words, it’s basically the defence system of the internet to prevent hackers from stealing personal information, disrupting business, or damaging government infrastructure.

The digital landscape continuously evolves, and it makes us all more connected through online banking, remote work, smart devices, and cloud platforms, hence the risk of cyber threats.

cyber security

5 Most Common Types of Cyber Security

Cyber security is a broad field with several areas of specialisation. Understanding the five key types helps build a strong foundation for individuals and businesses:

  1. Application Security

    Secures software and apps during development and after deployment.

  2. Network Security

    Focuses on protecting internal networks (LANs, WANs) from unauthorised access or misuse.

  3. Cloud Security

    Protects systems, data, and infrastructure hosted on cloud platforms like AWS, Azure, Google Cloud.

  4. Endpoint Security

    Secures individual devices like laptops, desktops, phones, etc., that connect to networks.

Have You Heard of the CIA Triad?

The CIA Triad is a core concept in cyber security, standing for Confidentiality, Integrity, and Availability. These three principles form the foundation of secure systems:

  1. Confidentiality

    Ensures information is only accessible to authorised users.

  2. Integrity

    Keeps data accurate and unaltered.

  3. Availability

    Ensures systems and data are accessible when needed.

Mastering the CIA Triad is essential for anyone working in the cyber field — and it's a key concept you’ll learn in your training at Applied Education.

CIA triad

Be Protected from these Cyber Threats

Malware & Ransomware

Malicious software that can damage systems or lock your files for ransom.

Social Engineering and Phishing

Designed to steal your information through fake emails, texts, or phone calls.

Man-in-the-Middle (MitM) Attack

MitM happens when a hacker secretly intercepts and possibly alters the communication between two people, devices, or systems — without either party knowing.

Imagine you're sending a private message to a friend, but someone is sitting in between, reading or even changing that message before it gets to your friend.

Denial-of-Service Attack

Aims to shut down a system, network, or website by overwhelming it with excessive traffic or requests. This overload prevents real users from accessing the service — essentially making it crash or freeze.

Zero-day Exploit

A Zero-Day Exploit is a cyber attack that takes advantage of a vulnerability in software or hardware that the developers don’t know about yet.

For example, a hacker finds a hidden flaw in your phone’s operating system and uses it to install spyware — before Apple or Google even knows the flaw exists.

Password Attack

These involve hackers trying to gain access by guessing or stealing your password.

Internet of Things Attack

The Internet of Things (IoT) refers to everyday devices connected to the internet, like:

  • Smart TVs
  • Smart thermostats
  • Wearable fitness trackers
  • Home security systems
  • Industrial sensors

Injection Attack

In these attacks, hackers "inject" malicious code into a vulnerable system (usually a form or search bar on a website). If the system doesn’t properly filter input, the hacker can:

  • Access or steal data
  • Delete or modify databases
  • Gain full control over the system

a hand holding a glowing circle with cyber security-relevant icons

Advantages and Disadvantages of Cyber Security

Cyber security offers many benefits, but like any field, it has its challenges.

Advantages:

Protects sensitive data and systems

Prevents financial loss

Builds trust with customers and users

Opens up high-demand career opportunities

Disadvantages:

Can require ongoing investment in tools and training

Systems may become complex to manage

New threats constantly emerge, requiring regular updates

Despite the challenges, the advantages of a strong cyber security strategy far outweigh the risks — and qualified professionals are key to success.

How to Get into Cyber Security?

cyber security course guide

You don’t need a tech background to start a career in cyber security. Here’s how to get started:

  • Take a beginner-friendly course – our Cyber Security courses are designed for businesses, beginners, individuals looking to upskill, and small business owners.
  • Build foundational IT skills – Learn networking, systems, and basic coding.
  • Practice using real-world tools – Through simulated environments and hands-on training.
  • Earn certifications – Enhance your resume with industry credentials.

With flexible learning options and supportive trainers, Applied Education helps you take the first step with confidence.

WA Fee-free Cyber Security Course

If you're a Western Australia resident, you may be eligible for fee-free cyber security training in 2025. Delivered by Applied Education under the WA Government's initiative, this course gives you access to industry-relevant skills without the cost barrier. Check your eligibility to find out if you meet the entry requirements.

Fully funded by WA Government Department of Training and Workforce Development, see jobsandskills.wa.gov.au. Includes all learning materials & access to student support. National recognised units.

This course is conducted via a combination of face-to-face and online learning, with 4 face-to-face classes which run from 8:30 AM to 4:30 PM. Our classes are held at Applied Education, Level 1, 524 Hay Street, WA 6000, located close to Perth Train Station.

Cyber Security Course Online – Micro-credential

Applied Education also offers flexible online micro-credentials in cyber security — ideal for working professionals or anyone looking to upskill quickly.

  • Learn at your own pace
  • Gain job-ready skills
  • Earn a recognised credential

These short courses focus on practical, high-impact topics like threat detection, risk management, and ethical hacking—perfect for building your cyber knowledge without a long-term commitment.

Take the Next Step – Enrol at Applied Education

Cyber security is more than a career — it’s a vital skillset for today’s connected world. Whether you’re just getting started or looking to grow your expertise, Applied Education offers practical, accessible training tailored to your goals.

With more than two decades of experience, Applied Education has become a leading name in delivering nationally accredited training and short courses across Australia. Our flexible online learning model and experienced educators have supported thousands of learners in gaining practical, career-focused skills.

We prioritise real-world results, uphold industry best practices, and are dedicated to making education accessible, making us a trusted choice for both individuals and organisations seeking quality training.

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