Book Image

Cloud Security Handbook

By : Eyal Estrin
Book Image

Cloud Security Handbook

By: Eyal Estrin

Overview of this book

Securing resources in the cloud is challenging, given that each provider has different mechanisms and processes. Cloud Security Handbook helps you to understand how to embed security best practices in each of the infrastructure building blocks that exist in public clouds. This book will enable information security and cloud engineers to recognize the risks involved in public cloud and find out how to implement security controls as they design, build, and maintain environments in the cloud. You'll begin by learning about the shared responsibility model, cloud service models, and cloud deployment models, before getting to grips with the fundamentals of compute, storage, networking, identity management, encryption, and more. Next, you'll explore common threats and discover how to stay in compliance in cloud environments. As you make progress, you'll implement security in small-scale cloud environments through to production-ready large-scale environments, including hybrid clouds and multi-cloud environments. This book not only focuses on cloud services in general, but it also provides actual examples for using AWS, Azure, and GCP built-in services and capabilities. By the end of this cloud security book, you'll have gained a solid understanding of how to implement security in cloud environments effectively.
Table of Contents (19 chapters)
1
Section 1: Securing Infrastructure Cloud Services
6
Section 2: Deep Dive into IAM, Auditing, and Encryption
10
Section 3: Threats and Compliance Management
14
Section 4: Advanced Use of Cloud Services

Managing governance and policies at a large scale

When organizations begin to adopt cloud services, it is highly recommended to plan and consider cloud governance (asset deployment, data security, risk management, and more), even before they find themselves managing multiple cloud environments and multiple accounts.

Failing to plan makes it challenging to fix configuration that was done ad hoc as lack of uniformity results in heterogeneous assets that need to be protected, lack of repeatability, redundancy, large attack surface, and self-imposed constraints from technical debt that are a challenge to recover from (such as overlapping CIDR blocks).

Some of the important terminology related to governance is as follows:

  • Landing Zones: These are pre-configured environments that are provisioned through code (policies, best practices, guidelines, and centrally managed services), as explained in the following section.
  • Compliance Policies: These are specific rules for evaluating...