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[Threat Modelling & Security Architecture]

Security designed in.
Not discovered after launch.

Security flaws found in design cost a fraction of those found in production. Our engineers embed into your engineering process, reviewing new features, services, and infrastructure changes before they ship. Risk-led security programmes that reflect your actual threat landscape, not generic industry checklists.

Pre-code

Security flaws identified before implementation

10x

Cheaper to fix in design than in production

Sprint

Cadence, threat models updated with every major change

Risk-led

Prioritisation based on your actual threat profile

Use cases

Where threat modelling changes outcomes

Threat modelling is most valuable when it is embedded into the engineering process, not conducted as a one-off exercise. TechSonar engineers work at the design stage, in sprint reviews, and during architectural change.

[01]

New feature and service design review

Before a line of code is written, TechSonar engineers review the design. Data flows, trust boundaries, authentication models, and authorisation logic are assessed against your actual threat landscape, not a generic checklist.

[02]

Infrastructure and architecture changes

Cloud migrations, new integrations, microservices decomposition, each introduces new attack surface. We model the threats introduced by architectural change before the change is deployed.

[03]

Risk-led security programme design

Security programmes built around your actual risk profile. We identify your highest-value assets, most likely threat actors, and most probable attack paths, then prioritise controls accordingly.

[04]

Zero-trust architecture design

Identity-centric, least-privilege network architecture across cloud and on-premise environments. We design and implement zero-trust models that reduce lateral movement risk without breaking operational workflows.

Methodologies

Industry-standard frameworks, applied by senior engineers

STRIDE

Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege, systematic threat identification across all system components.

PASTA

Process for Attack Simulation and Threat Analysis, risk-centric methodology that aligns threat modelling with business objectives and risk appetite.

MITRE ATT&CK

Adversary tactics and techniques mapped to your architecture. Threat models grounded in real-world attacker behaviour, not theoretical risk.

LINDDUN

Privacy threat modelling for systems handling personal data. Linkability, Identifiability, Non-repudiation, Detectability, Disclosure, Unawareness, Non-compliance.

Security architecture

Architecture that reduces attack surface by design

Beyond threat modelling, TechSonar engineers design and review security architectures, from zero-trust network models to identity federation, from microservices security patterns to cloud-native control planes. Architecture that treats security as a first-class requirement.

  • Zero-trust architecture design and implementation
  • Identity and access management architecture
  • Microservices and API security patterns
  • Cloud security architecture across AWS, Azure, GCP
  • Security architecture review embedded in sprint process
  • Attack surface analysis and control gap identification

The cost of late discovery

IBM's Cost of a Data Breach report consistently shows that vulnerabilities identified in the design phase cost 6–10x less to remediate than those found in production. Threat modelling is not a compliance exercise, it is an engineering investment with measurable ROI.

£1x

Design

£6x

Development

£60x

Production

Embedded into your process

TechSonar threat modelling is not a quarterly workshop. Our engineers attend design reviews, review PRs for security implications, and flag architectural concerns in real time, at the speed your engineering team moves.

Get started

Build security into your architecture from day one.