Discussion Thread: Cybersecurity — Layering-Abstraction-Process Isolation

The NSA has identified what they call the First Principles of cybersecurity.

 The following lists three of these: 

 Principle                       Last Name Starts With 

Layering                        A through H 

Abstraction                   I through Q 

Process Isolation          R through Z

 For your discussion, describe the principle assigned to the first letter in your last name (in the above table). Include practical examples of the concepts. Your post must display your understanding of the topic beyond the simple description.

My last name starts with “E”