Phase 2: Core Security Concepts

Understanding the big picture helps you grasp new concepts faster and gives you direction. Once you see how everything fits together, you can dive deeper into the areas that actually interest you. Learn the big picture:

• Key Cyber Terms

  Every field has its own language, and cybersecurity is no different. Learning key terms like "malware," "phishing," "firewall," and "encryption" is the first step to understanding articles, tutorials, and job descriptions. This is the vocabulary you'll use every day. Learn more.

• Defensive vs. Offensive Security

  Cybersecurity is often broken down into two main mindsets. Defensive security (Blue Team) focuses on protecting an organization's systems and data. Offensive security (Red Team) simulates attacks to find vulnerabilities before real hackers do. Understanding both sides is crucial for a complete security perspective.

• Frameworks

  Instead of making things up as they go, organizations rely on established cybersecurity frameworks. These are structured sets of guidelines and best practices (like NIST or ISO 27001) that help them manage risk and build a mature security program. Learn more.

• The CIA Triad

  This is one of the most fundamental models in all of security. It consists of three core principles: Confidentiality (keeping data secret), Integrity (ensuring data is accurate and trustworthy), and Availability (making sure data and services are accessible when needed). Nearly every security control is designed to support one or more of these principles. Learn more.