Security Architecture

Overview

Every technology decision has security implications. Opcode works with your engineering and leadership teams to design security architectures that are practical, scalable, and aligned with your risk profile — not theoretical exercises that sit in a drawer.

Whether you’re building a new platform, migrating to the cloud, or reviewing an existing architecture for weaknesses, Opcode provides the specialist perspective needed to get it right.

What’s included

• Architecture review — Assessment of your current architecture against security best practices, threat models, and compliance requirements.
• Threat modelling — Structured identification of threats, attack surfaces, and risk scenarios specific to your systems and data flows.
• Reference architectures — Documented, reusable architecture patterns for common scenarios: identity and access, network segmentation, data protection, logging and monitoring.
• Cloud security design — AWS, Azure, and GCP security architecture patterns including IAM strategy, network design, encryption at rest and in transit, and secrets management.
• Security design review — Review of proposed designs before implementation to identify security gaps early, when they’re cheapest to fix.

How it works

1. Discovery — Opcode reviews your existing architecture documentation, interviews key technical stakeholders, and understands your business context and risk appetite.
2. Assessment — Current-state analysis against relevant frameworks and threat models. Gaps and risks are identified and prioritised.
3. Design — Target-state architecture is developed collaboratively with your team, with clear documentation and rationale for each decision.
4. Handover — Deliverables include architecture documentation, threat model outputs, prioritised recommendations, and implementation guidance.

Relevant frameworks

• NIST Cybersecurity Framework (CSF)
• ISO 27001 / 27002
• CIS Controls
• AWS Well-Architected Framework (Security Pillar)