Zero Trust in Resilient Cloud and Network Architectures is a comprehensive and practitioner-focused guide written by senior Cisco engineers Josh Halley, Dhrumil Prajapati, Ariel Leza, and Vinay Saini. Published by Cisco Press, the book delivers a deep, real-world exploration of the Zero Trust security model and how it applies across modern cloud environments, distributed networks, and mission-critical enterprise infrastructures.

With cyber threats growing increasingly sophisticated and organizations shifting toward hybrid, multi-cloud, and remote-driven operations, Zero Trust has become an essential security foundation. This book explains Zero Trust from first principles to advanced deployments, showing how to build architectures that remain resilient, segmented, automated, and protected at scale.

What This Book Covers

1. Zero Trust Fundamentals

The book begins with a thorough introduction to:

• The core principles of Zero Trust
• Why “trust nothing, verify everything” is the new security standard
• Limitations of legacy, perimeter-based security
• Identity-centric and continuous-validation concepts

2. Zero Trust in Cloud & Distributed Architectures

Readers learn how Zero Trust applies across:

• AWS, Azure, Google Cloud
• Hybrid and multi-cloud deployments
• Highly distributed enterprise networks
• Edge and remote environments

The authors analyze modern cloud threats and explain how Zero Trust mitigates risk through segmentation, identity controls, and encrypted traffic flows.

3. Designing Resilient Architectures

Learn to create secure, fault-tolerant architectures with:

• Micro-segmentation and macro-segmentation
• Policy-based access control
• Secure communication mechanisms
• Multi-factor authentication (MFA)
• Data encryption and continuous monitoring

These chapters guide architects through building systems that maintain security even under active attack or service disruption.

4. Automation & Network Operations

The book explains how Zero Trust works alongside infrastructure automation using:

• Terraform
• Ansible
• Cisco automation frameworks
• Orchestration workflows
• Pub/Sub messaging models

Readers learn how automated policies and workflows reduce operational risk while improving scalability and consistency.

5. Real-World Deployment Scenarios

Case studies include:

• Enterprise-wide segmentation rollouts
• Cisco Meraki Zero Trust implementations
• EVPN-based architectures
• Industrial Zero Trust
• Best practices from large Cisco global deployments

These real experiences highlight what works, what fails, and how to deploy Zero Trust successfully at any scale.

6. Future-Forward Security: Quantum & Industrial Zero Trust

The authors explore emerging areas including:

• Quantum-resistant cryptography
• Zero Trust in OT and industrial networks
• Security for IoT, smart factories, and high-reliability environments

Benefits of Reading This Book

• Build deep expertise in Zero Trust principles and architecture
• Learn how to secure modern cloud, hybrid, and distributed environments
• Understand segmentation, identity management, automation, and encrypted traffic flows
• Gain practical implementation guidance from real Cisco deployments
• Develop resilient systems resistant to advanced cyber threats

Who This Book Is For

• Network architects
• Security engineers
• Cloud engineers
• Automation/DevOps professionals
• IT leaders evaluating Zero Trust adoption

Anyone designing next-generation secure networks will find this book essential.

Book Details

• Copyright: 2025
• Price: $31.99
• Pages: 864
• Edition: 1st
• Format: EPUB, PDF Convert
• ISBN-10: 0-13-820460-8
• ISBN-13: 978-0-13-820460-0
• Authors: Josh Halley, Dhrumil Prajapati, Ariel Leza, Vinay Saini
• Publisher: Cisco Press
• Series: Networking Technology

Conclusion

Zero Trust in Resilient Cloud and Network Architectures is a must-have resource for professionals implementing next-generation security. From Zero Trust fundamentals to large-scale Cisco-driven architectures, automation workflows, and quantum-ready security, this book equips readers with the knowledge needed to build robust, secure, and future-proof infrastructure.

File Size: 76 MB