This section sets the foundation of the course by defining and dissecting the concept of information systems. It explores the key elements that make up the framework of an information system. We'll guide you through the journey of Information System development using the Systems Development Life Cycle (SDLC) process. You'll learn about the various components that make up the SDLC process, understanding their role and importance in the development cycle. Also, you will acquire a robust understanding of security threats, attacks, and vulnerabilities, key terminologies in the world of information security. By identifying and categorizing different types of threats, you'll learn to understand the threat landscape that information systems face. We'll also delve into understanding the perpetrators of these threats - the attackers and uncover common attack types or methods that they employ. This understanding forms a crucial part of developing robust defenses for information systems.

In this crucial section, we explore the concept of the 'weakest link' in information security and the importance of security awareness training in strengthening this link. You'll be introduced to the various common and effective attacks that exploit human vulnerabilities, often considered as the 'weakest link' in security. We delve into the realm of social engineering and explain manipulative tactics such as phishing, smishing, and vishing. Additionally, this section will guide you through the requirements for conducting effective security awareness training within an organization. You will also understand the importance of Access Controls and the Physical security realm in regard to information security. Remember when you configure something very secure, it does not mean that an attacker cannot simply physically unplug the cable.

In this introductory section to cryptography, we embark on an exciting journey to understand its basic concepts and historical context. You'll learn the fundamental terminology used in cryptography and understand the all-important concept of encryption, the process of converting information into code to prevent unauthorized access. We will also explore in detail the concepts of symmetric and asymmetric encryption and learn about hashing and Public Key Infrastructure (PKI). All these concepts play a vital role in protecting information in the digital world. Moreover, you'll also learn about some of the most well-known attacks on cryptography. And lastly, we will shift our focus to practical applications of cryptography in everyday life. We'll discuss how cryptography is used in various scenarios such as internet banking and cryptocurrencies like Bitcoin.

In this section, we will dive into three essential frameworks in the realm of information security - GDPR (General Data Protection Regulation), NIST CSF (National Institute of Standards and Technology’s Cybersecurity Framework), and ISO 27001 (Information Security Management System). You'll learn to define each framework and comprehend its unique features and applications. We'll also go through some basic questions and answers on each subject to ensure you have a comprehensive understanding of these frameworks and how they contribute to the security landscape. You will also learn what an Information Security Policy is, and the critical steps involved in creating one for your organization. Furthermore, we'll cover the importance of having such a policy in place, emphasizing its role in establishing guidelines and standards for handling and securing information. Lastly, the section concludes with a discussion on the importance of regular policy review and revisions to keep it up-to-date and effective.

Concluding the course with the instructor’s final thoughts and potential suggestions about where to go further with your studies. Also, we will cover one of the most important things in Information Security – Passwords.