Threat Modelling – Security Architectural Review

BTECHNO > Threat Modelling – Security Architectural Review

Security Architecture Review & Threat Modelling

Secure-by-Design Architecture for Cloud-First Organisations

Security failures rarely happen because controls are missing — they happen because systems were not designed with threat, identity, and resilience in mind.

 

BTECHNO’s Security Architecture Review & Threat Modelling service helps organisations identify, prioritise, and mitigate architectural risk early, ensuring systems are secure, resilient, and defensible.

 

We deliver practical, risk-driven security architecture that stands up to real-world threats, audits, and disruption.

Why Security Architecture Reviews Matter

Modern environments introduce fast-moving, complex risk:
  • Cloud and hybrid architectures
  • Identity-centric attack paths
  • APIs and microservices
  • Third-party and supply-chain dependencies
  • Increasing regulatory and resilience expectations
Threat actors exploit design weaknesses, not just misconfigurations. Security architecture reviews ensure that:
  • Risks are identified before implementation
  • Controls align to real attack scenarios
  • Design decisions are defensible to Boards and regulators
Security enables delivery — not rework

Our Approach

Architecture-Led • Threat-Informed • Risk-Driven

Shift-Left, Secure-by-Design

We embed threat modelling early in the design and delivery lifecycle, working alongside architecture and engineering teams to:
  • Identify risks during design
  • Prevent expensive remediation later
  • Support Agile, DevSecOps, and cloud-native delivery
Security becomes part of the architecture — not an afterthought.

Threat Modelling Using Proven Frameworks

We tailor threat modelling to your environment and risk profile, using:
  • STRIDE — systematic threat identification
  • MITRE ATT&CK — real-world adversary behaviour
  • PASTA — risk-centric, business-aligned modelling
  • VAST — scalable enterprise threat modelling
The focus is actionable, prioritised outcomes, not methodology theatre.

Architecture Coverage Areas

Cloud & Hybrid Architecture

Assessment across:
  • Public cloud (Azure, AWS, GCP)
  • Hybrid and on-premise environments
  • Multi-cloud integration patterns
  • Shared responsibility risks
Focus areas:
  • Identity and access misconfiguration
  • Privilege sprawl
  • Insecure service-to-service communication
  • Data exposure and availability risks

Identity-Centric Architecture (Zero Trust)

Modern attacks are identity-driven. We assess:
  • Authentication and authorisation flows
  • Privileged access paths
  • Service and workload identities
  • Identity recovery and resilience
Architecture is aligned to Zero Trust, treating identity as the primary control plane.

Application, API & Microservices Security

We evaluate:
  • API trust boundaries
  • Microservice communication risks
  • Token, key, and secret management
  • Lateral movement scenarios
  • Dependency and supply-chain exposure

Risk Prioritisation & Business Impact

We translate technical threats into business-relevant risk by:
  • Assessing likelihood and impact
  • Linking threats to critical services and data
  • Prioritising remediation by risk exposure
  • Identifying residual risk and acceptance decisions
This enables informed, defensible leadership decisions.

Continuous Architecture & Threat Maturity

Security architecture is not static. We support:
  • Architecture maturity assessments
  • Repeatable review cadence for evolving systems
  • Integration with risk and compliance programs
  • Continuous Threat Exposure Management (CTEM) approaches
Security posture evolves with the business — not behind it.

Governance, Risk & Compliance Alignment

Our reviews directly support:
  • CPS 230 — operational resilience and dependency risk
  • CPS 234 — secure design and information security
  • SOC 2 — system security and availability
  • ISO/IEC 27001 — secure architecture and risk treatment
Outputs feed directly into:
  • Risk registers
  • Control improvement plans
  • Audit and assurance activities

What You Receive

Key Deliverables

  • Architecture threat model and risk register
  • Prioritised remediation recommendations
  • Secure design principles tailored to your environment
  • Executive summary and risk heatmap
  • Architecture improvement roadmap
All deliverables are practical, defensible, and implementation-ready. Where appropriate, we leverage tooling to:
  • Produce visual threat models and diagrams
  • Maintain traceability between threats and controls
  • Support ongoing updates as architecture evolves

Typical Engagement Timeline

(Indicative — varies by complexity)
  • Architecture review & discovery: 2–3 weeks
  • Threat modelling workshops & analysis: 2–4 weeks
  • Risk prioritisation & reporting: 1–2 weeks
Larger environments may be delivered in phases or streams.

Who This Is For

  • Organisations designing or modernising systems
  • Cloud and digital transformation programs
  • Regulated or high-risk environments
  • Teams preparing for audits or regulatory scrutiny
  • Enterprises seeking proactive security assurance

Why BTECHNO

  • Deep expertise across security architecture, IAM, cloud, and GRC
  • Threat modelling grounded in real-world attack behaviour
  • Business-aligned, regulator-credible outcomes
  • Clear communication with engineers, executives, and Boards
  • Focus on prevention, resilience, and assurance
Request a Security Architecture Review
Book a Threat Modelling Discovery Session

Let’s design systems that are secure by design — and resilient by default.