Which standard approach to security is augmented by the 4C's of Cloud Native security?

The 4C's of Cloud Native security (Cloud, Cluster, Container, Code) model is a direct application and augmentation of the Defense-in-Depth strategy. This strategy involves creating multiple, independent, and redundant layers of security controls to protect assets. The 4C's framework provides a structured way to apply this layered approach to a cloud-native stack. Each 'C' represents a distinct layer, and security controls are implemented at each one. The security of an inner layer (e.g., Code) is dependent on the security of the outer layers (e.g., Container, Cluster, Cloud), creating a comprehensive, multi-layered defense posture.

A. Zero Trust is a strategic model that assumes no implicit trust and requires continuous verification, which is a different concept from the layered approach of the 4C's.

B. Least Privilege is a principle applied within each of the 4C's layers to grant minimal necessary permissions, not the overarching strategy that the 4C's model itself represents.

D. Secure-by-Design is a methodology for integrating security into the development lifecycle, which is applied at the Code and Container layers, not the foundational strategy augmented by the 4C's.

1. Kubernetes Documentation

"Cloud Native Security

" Overview section. The official documentation states

"Cloud native security is a layered approach... Each layer of the cloud native security model builds upon the next. The Code layer benefits from a strong foundation at the Cloud

Cluster

and Container layers." This directly describes the Defense-in-Depth concept.

2. Cloud Native Computing Foundation (CNCF)

"Cloud Native Security Whitepaper

" v1.0

November 2020

Section 3.1

"The 4 C's of Cloud Native Security

" Page 10. The paper introduces the 4C's as distinct layers of security concern

stating

"Security is a concern at every layer

" which is the fundamental premise of Defense-in-Depth.

3. The Linux Foundation

"Introduction to Cloud Infrastructure Technologies (LFS151)

" Chapter 12.2

"Cloud Native Security." This courseware explains that the 4C's model provides layers of security

where a vulnerability in one layer can be mitigated by controls in another

embodying the Defense-in-Depth principle.