Threat Modeling
Find the attack before the attacker does — at design time.
Get a quoteA structured adversarial analysis of your system's architecture before code is written or reviewed — identifying attack paths, trust boundary failures, and design-level vulnerabilities using STRIDE, PASTA, and MITRE ATT&CK.
Most vulnerabilities are not introduced in the code — they are designed in. Threat modeling is the discipline of systematically identifying how a motivated adversary could attack your system before it is built. Deep Guard applies STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege) and PASTA (Process for Attack Simulation and Threat Analysis) to your architecture, decomposing the system into data flows, trust boundaries, assets, and entry points. The output is a documented threat model that defines what must be built securely — and becomes the foundation for every subsequent security engagement.
Our process, step by step.
Every engagement follows a structured methodology. No steps are skipped. No shortcuts are taken.
Architecture Decomposition
We work with your engineering team to produce or validate data-flow diagrams covering every component, every external call, every trust boundary, and every path by which data enters and exits the system.
Asset and Entry Point Inventory
We identify every asset whose compromise would cause material harm, and every entry point an adversary could use to reach those assets — including intended interfaces and unintended exposure.
STRIDE Analysis
We apply STRIDE across every data flow and component, systematically asking: can an identity be spoofed here? Can data be tampered with? Can actions be repudiated? Can sensitive data leak? Can availability be disrupted? Can privilege be escalated?
PASTA Attack Simulation
We model realistic attack scenarios end-to-end — from business objective to exploitation — prioritising threats by their likelihood, impact, and the feasibility of the attack chain for a motivated adversary.
Threat Model Report and Security Requirements
Findings are documented in a structured threat model report. Each identified threat is mapped to a concrete security requirement that must be satisfied by the design, code, or operational controls — creating a verifiable baseline for every subsequent review.
Documented threat model
A structured record of every identified threat, attack path, and trust boundary failure — kept as a living document as the architecture evolves.
Design-derived security requirements
Each threat mapped to a concrete requirement that must be satisfied before the feature ships — eliminating design-level vulnerabilities before they become code-level vulnerabilities.
Prioritised attack surface
A ranked view of which components and flows carry the highest risk — directing your team's attention and your audit budget to where it matters most.
Audit and review foundation
The threat model becomes the reference document for every subsequent Deep Guard engagement, ensuring audits are targeted rather than generic.
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Talk to a Deep Guard engineer about your protocol and get a scoped quote within 24 hours.