Threat Modeling

Security by Design through Professional Threat Modeling

Identify and eliminate security risks before they arise.

In an era where modern IT systems are becoming increasingly complex, simple testing at the end of the development cycle is often no longer sufficient. It is expensive and usually too late to correct fundamental design flaws. Threat modeling starts earlier: it is a structured approach to identifying threats to your systems, applications, or business processes at an early stage, making it a key component in ensuring the security and resilience of a system.

Why Threat Modeling?

Threat modeling enables you to make informed decisions about security risks and prioritize countermeasures based on measurable factors.

• Early Detection: Identify and analyze potential vulnerabilities as early as the concept or design phase.
• Cost Efficiency: Resolve security risks before they become expensive to fix through costly updates during implementation.
• Prioritization: Receive a clear list of security improvements ordered by criticality, supporting you in defining appropriate measures to secure the system against identified threats.
• Transparency: Validate assumptions about your system boundaries and understand the dependencies within your architecture.

Our Approach: 4 Steps to Identify Threats

We look beyond pure code and analyze the entire ecosystem of your application. Our approach is methodologically sound and field-tested:

1. Defining the Scope (Scoping): In the first step, we work with you to define the scope of the threat model. This ensures that it is clear to all involved parties where the system boundaries lie, which elements are analyzed, and which elements might not be part of it. This step is crucial to establish a clear focus and target efforts effectively during the subsequent execution.
2. System Analysis (Decomposition): First, we build a deep understanding of your system. We analyze the architecture, identify external dependencies (e.g., infrastructure or legacy systems), and define all interfaces (entry and exit points). Using data flow diagrams (DFD), we visualize how data moves through your system and where critical trust boundaries lie.
3. Identifying Threats (Identification): Applying proven frameworks such as STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege), we support you in identifying potential threats. We consider both classic use cases and targeted abuse cases.
4. Evaluation and Prioritization: Not every threat is equally critical. We evaluate the identified risks using established models to obtain a transparent prioritization. As a result, we jointly define recommended actions for hardening your system.

When is Threat Modeling Useful?

Threat modeling is not a one-time event, but an ongoing process. We recommend performing or updating a threat model especially for:

• Project Start: Integrating security right from the initial sketch.
• New Features: Evaluating the impact of new functionalities on the existing security posture.
• Structural Changes: Major adjustments in the infrastructure or architecture.
• Security Incidents: Analysis and modeling after occurrences of incidents to prevent recurrence.

Our Services

We are happy to support you in firmly integrating threat modeling into your daily development routine:

• Process Integration: We help you embed a systematic threat modeling approach into your existing SDLC processes (Software Development Life Cycle).
• Threat Modeling Workshops: Together with your architects and developers, we analyze a specific system and develop a directly applicable threat model.
• Threat Modeling Coaching: We coach a selected group of individuals within your company with the goal of enabling them to perform threat modeling independently (e.g., your security architects, security champions, or product managers).

Contact us today for a non-binding initial consultation or a workshop to build your systems secure from the ground up.