Threat Modelling

We examine your system architecture - cloud infrastructure, microservices, data flows, third-party integrations, and trust boundaries. We identify security-critical components, single points of failure, and architectural patterns that could introduce vulnerabilities. Whether you're building new systems or evolving existing ones, we help you understand the security implications of architectural decisions before they're implemented.

We apply the STRIDE methodology (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege) to systematically identify threats to your system. This structured approach ensures comprehensive coverage across all threat categories. We examine each component and data flow, identifying how attackers might compromise authentication, manipulate data, deny actions, steal information, disrupt services, or gain unauthorized access.

We trace how sensitive data moves through your system - from user input through processing, storage, and output. We identify where data is most vulnerable, what security controls protect it at each stage, and where additional protection is needed. This analysis is crucial for meeting regulatory requirements (GDPR, HIPAA, PCI-DSS) and ensuring sensitive information is protected throughout its lifecycle.

We map your entire attack surface - APIs, web interfaces, mobile apps, third-party integrations, and internal systems. We identify which components are exposed to untrusted networks, which accept user input, and which process sensitive data. Understanding your attack surface helps prioritize security efforts on the areas that matter most. We also identify opportunities to reduce attack surface through architectural changes.

For each identified threat, we recommend specific security controls aligned with your risk tolerance and budget. These include authentication mechanisms, authorization models, encryption requirements, input validation strategies, logging and monitoring capabilities, and secure configuration practices. Our recommendations are practical and prioritized, helping you focus resources on the most critical security controls first.

We produce clear, actionable threat model documentation including architecture diagrams, data flow diagrams, identified threats, recommended controls, and risk assessments. More importantly, we help you establish processes for maintaining threat models as your system evolves. Security isn't a one-time activity - we ensure your team can update threat models when adding features, changing architecture, or responding to new threats.