Security Fundamentals
The fundamentals of security are the foundation of protecting our assets, and there must be a strategy or methodology that we adapt for security. This is the CIA triad; let's look at its breakdown.
CIA Triad Concept
Most security books start with the basics of security by featuring the CIA triad—this is a conceptual model designed to help those writing information security policies within an organization. It is a widely used security model and it stands for confidentiality, integrity, and availability, the three key principles that should be used to guarantee you have a secure system:
Figure 1.1 – CIA triad
We'll discuss these principles in more depth here:
- Confidentiality: Prevents the disclosure of data to unauthorized people so that only authorized people have access to data. This is known as the need-to-know basis. Only those who should know the contents should be given access. An example would...
