Introduction

1.1. Introduction#

Software vulnerabilities are weaknesses or flaws in a program that attackers can exploit. These vulnerabilities be caused by coding errors or design oversights.

1.1.1. Types of Vulnerabilities#

We will learn about the following types of vulnerabilities:

  1. Coding Errors e.g. bugs, buffer overflow, SQL injection, etc.

  2. Design Oversights e.g. features that were not secured from the start, leaving gaps attackers can abuse.

  3. Poor Configuration e.g. misconfigured servers that expose private data.

1.1.2. Why Do We Care?#

Even small mistakes in software can lead to huge consequences for individuals, organisations, and society.

  • Data Breaches

    • Individuals can have private data (like passwords and credit card numbers) leaked or sold.

    • Organisations may suffer financial losses and reputational damage.

  • Service Interruptions

    • Critical systems can be shut down, preventing users or customers from accessing services.

    • This can also cause financial losses and reputational damage to organisations.

  • Loss of Trust

    • Users lose confidence when systems fail to protect their information.

    • Companies risk losing customers and future revenue.

1.1.3. Next Steps#

In this lesson, we’ll

  • Explore Fundamental Security Concepts

    • We will delve into confidentiality, integrity, availability, authentication, authorisation, and accountability. You’ll see how each principle addresses different classes of vulnerabilities and guides more secure programming practices.

  • Discover the Benefits of Secure Software

    • Learn how strong security measures lead to better data protection and help minimise cyber attacks. We’ll look at real-world examples where proper safeguards significantly reduced breaches or service downtime.

  • Investigate Enterprise Advantages

    • Find out how implementing safe and secure development practices contributes to improved products, influences future software design, enhances work practices, boosts productivity, and fosters better business interactivity. We’ll examine both technical and business perspectives.

  • Evaluate Social, Ethical, and Legal Issues

    • Explore how secure software development affects employment, data security, privacy, copyright, intellectual property, and digital disruption. By examining real-world scenarios, we’ll weigh the responsibilities that come with creating safe and secure systems.