Definition
Security Concepts refers to the fundamental principles and building blocks underlying all cybersecurity practices. These concepts provide a common language and framework for understanding, implementing, and managing security controls across various technologies and environments. They are essential for designing secure systems, responding to incidents, and ensuring the overall resilience of an organization's digital assets. For instance, the concept of least privilege dictates that users and systems should only have the minimum necessary permissions to perform their functions, preventing unauthorized access or actions. This differs from access control lists, which are specific mechanisms for enforcing permissions rather than the underlying principle itself. Understanding these core ideas is crucial for success on exams like CompTIA Security+, CySA+, and CISSP.