IriusRisk vs OWASP Threat Dragon

IriusRisk is an AI threat-modeling tool for planning secure software design. It helps teams build threat models, identify threats and countermeasures, and surface vulnerabilities and compliance gaps. Its Jeff AI Assistant can turn user stories, documentation, meeting transcripts, or code into a diagram showing threats and security controls. A built-in knowledge base supports applying standards such as PCI DSS, NIST, and GDPR, marking aligned countermeasures as required. Integrations include Jira, ServiceNow, Azure DevOps, Jenkins, GitHub, OWASP ZAP, Terraform, AWS CloudFormation, and Open API; users can also import diagrams from draw.io, Visio, Lucidchart, and Microsoft Threat Modeling Tool. The free Community Edition costs nothing and allows one user and three active threat models. Enterprise has no listed price and is offered as SaaS or on-premise. IriusRisk says its cloud services are not designed or certified for certain sensitive data, including PHI and GDPR special category data.

OWASP Threat Dragon creates threat-model diagrams and records threats associated with diagram elements as part of a secure development lifecycle. Diagrams can represent processes, data stores, actors, data flows and trust boundaries. It supports STRIDE, LINDDUN, CIA, CIA-DIE, DIE and PLOT4ai threat categories. A rule engine can propose threats and mitigations based on properties of diagram elements. Threat Dragon can run as a containerized, self-hosted web application or as a desktop app with installers for Windows, macOS and Linux. The web app supports local file storage and configurable access to GitHub, GitHub Enterprise, Google Drive, Bitbucket, Bitbucket Enterprise and GitLab; the desktop app saves models locally. The project lists Apache License 2.0. Analytics are disabled by default and require server configuration. The project is volunteer-maintained and notes that immediate investigation or response to incidents is not always possible. Threat Dragon is listed at free, with no paid plans or usage limits stated.