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

Cost management in multi-cloud environments

Although cost management (also known as financial management or FinOps) may not seem directly related to security, it has implications on a multi-cloud environment.

Cost management is part of having visibility over your entire multi-cloud environment, from a cost point of view. All major cloud providers have their own built-in cost management services that allow you the necessary visibility of your cloud accounts, subscriptions, or projects.

When organizations are moving from a single cloud provider (in many cases, with multiple accounts at the same cloud provider, for different environments or business needs) to a multi-cloud setup, they begin to realize that they lack the necessary visibility regarding cloud cost.

Some of the concerns organizations often have are as follows:

  • Data transfer cost (also known as egress data)
  • Redundant resources being spent (such as multiple log systems, backup services, and anti-malware...