Generate Threat Modeling Diagrams with AI

Visualize attack surfaces, trust boundaries, data flows, and STRIDE threat categories across your system — before your next design review or SOC 2 audit. Describe your architecture in plain English and get a professional threat model diagram ready for security engineers, AppSec teams, and DevSecOps practitioners in seconds.

The challenge

Security teams need to diagram trust boundaries, data flows, and STRIDE threats before every design review — but manual DFD tools are slow, require security expertise to format correctly, and produce diagrams that go stale the moment the architecture changes. Most engineering teams skip threat modeling not because they don't value it, but because producing a credible DFD in time for a review takes hours they don't have.

What ArchitectureDiagram.ai generates

DFDs with trust boundaries
Data flow diagrams showing every process, data store, and external entity — with trust boundary lines demarcating the browser, DMZ, internal network, and cloud perimeter.
STRIDE threat maps
Diagrams annotated with Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, and Elevation of Privilege threat categories at each component and data flow.
API attack surface diagrams
Visualizations of exposed API endpoints, authentication boundaries, rate limiting, and input validation layers — ideal for AppSec reviews and penetration test scoping.
Microservices security boundary diagrams
Service mesh security diagrams showing mTLS boundaries, service account permissions, network policies, and lateral movement paths across microservice architectures.
Cloud security perimeter diagrams
AWS, GCP, and Azure security architecture diagrams covering VPC boundaries, IAM trust relationships, S3/GCS bucket exposure, and egress control points.
AI agent threat models
Threat models for LLM-powered systems — covering prompt injection vectors, tool call boundaries, data exfiltration paths, and trust boundaries between agents and external APIs.

Example prompts to try

"A web app DFD with a React frontend, Express API, and PostgreSQL database. Show trust boundaries between the browser, DMZ, and internal network. Identify STRIDE threats at each boundary."

"A microservices threat model on Kubernetes. Services communicate over gRPC with mTLS. Show the service mesh trust boundaries, the ingress controller as the external entry point, and flag lateral movement risks between the payment service and user service."

"An AWS cloud security perimeter diagram for a SaaS app. Includes a public ALB, ECS tasks in private subnets, RDS in an isolated subnet, and an S3 bucket for uploads. Show VPC boundaries, security groups, and IAM trust relationships."

"A threat model for an LLM-powered coding assistant. The agent calls GitHub, Jira, and a code execution sandbox via tool calls. Show prompt injection attack vectors, tool call trust boundaries, and data exfiltration paths."

Who uses threat modeling diagrams

Security engineers running design-phase threat reviews
AppSec teams scoping penetration tests and bug bounties
DevSecOps practitioners embedding threat models into CI/CD pipelines
Compliance teams preparing evidence for SOC 2 Type II and EU AI Act audits
Software architects doing secure design reviews before launch

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