Azure Security Architecture
Comprehensive security architecture diagram for Azure cloud environment, featuring zero-trust modeling and defense-in-depth.
The Challenge
Our client, a major financial services enterprise, needed to securely migrate their on-premise workloads to Microsoft Azure. They faced significant regulatory scrutiny and required an architecture that inherently supported Zero Trust principles, extensive network segmentation, and stringent data protection controls.
The Solution
I designed and implemented a comprehensive Azure Security Architecture that served as the blueprint for their entire greenfield deployment.
The architecture leveraged a Hub and Spoke topology, isolating critical workloads while centralizing security inspection through Azure Firewall and Application Gateway.
Key capabilities introduced:
- Identity & Access Management: Azure AD P2 with conditional access policies enforcing MFA and risk-based sign-ins.
- Network Security: Network Security Groups (NSGs) and Application Security Groups (ASGs) strictly controlling east-west traffic.
- Threat Protection: Microsoft Defender for Cloud enabled across all subscriptions to provide immediate Cloud Security Posture Management (CSPM) visibility.
The Results
By adhering to the Microsoft Cybersecurity Reference Architecture (MCRA) and the Cloud Adoption Framework (CAF), the client achieved:
- 100% compliance with internal security mandates prior to go-live.
- Centralised visibility of all threat telemetry via Microsoft Sentinel.
- Automated governance enforced by Azure Policy, preventing the deployment of non-compliant resources.