Introduction to Cybersecurity

Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These attacks are usually aimed at accessing, changing, or destroying sensitive information, extorting money from users, or interrupting normal business processes.

In this introductory lesson, we explore the core principles: Confidentiality, Integrity, and Availability — known as the CIA Triad. Understanding these three pillars is foundational to every security decision you will make as a professional.

Confidentiality ensures that data is only accessible to authorized parties. Integrity guarantees that data has not been tampered with. Availability ensures that systems and data are accessible when needed by authorized users.