Threat Modeling Assistant

Threat model with STRIDE

Threat modeling asks, systematically, what could go wrong with a system before it is built or breached. This assistant guides you through the STRIDE method, so you can identify threats to your application in a structured way rather than hoping to think of them all.

Why STRIDE structures the thinking

Left to intuition, threat identification is patchy, you find the threats you already worry about and miss the rest. STRIDE gives six categories, Spoofing, Tampering, Repudiation, Information disclosure, Denial of service, Elevation of privilege, and prompts you to consider each against the parts of your system. That structure forces coverage: for each component you ask whether each kind of threat applies, which surfaces risks that unstructured brainstorming skips. Threat modeling early is one of the highest-value security activities, because a threat found in design is far cheaper to address than one found in production.

Structured threat discovery

The tool runs entirely in your browser, so nothing you paste is uploaded, which is exactly what you want when the input is your own security-sensitive data.

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