IriusRisk vs ThreatTree

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.

ThreatTree is a browser-based tool for organizing threat models into forests of Data Flow Diagrams and Attack Trees. It scores risks by likelihood and impact, then generates a ranked risk register across the trees in a forest. Threats can be tagged with STRIDE, LINDDUN, OWASP Top 10, CAPEC, and MITRE ATT&CK; mitigations can be mapped to standards including ISO 27001:2022, NIST SP 800-53 Rev 5, CIS Controls v8, PCI DSS v4.0, NIST CSF 2.0, and SOC 2. Teams can invite members with owner, editor, or viewer roles. Reports are available as PDFs, with JSON and STIX 2.1 exports. Optional per-forest AES-256-GCM encryption is available on every plan, including Free. ThreatTree says data is stored on UK servers, connections use TLS 1.2 or higher, and encrypted database backups are taken daily and retained for 30 days. The Free plan costs nothing and has limits on forests and trees. Pro costs $29 a month per user, billed monthly; Enterprise pricing is by quote.