AutoSec TARA Suite vs CAIRIS

AutoSec TARA Suite is a pilot automotive threat-modelling and risk-management platform for analyst-led workflows aligned with ISO/SAE 21434 and UN R155 activities. Its analysis moves through item definition, asset and boundary identification, threat scenarios, attack analysis, impact assessment, and risk determination. Candidate threat scenarios are generated for analyst review and mapped to STRIDE categories. Risk assessment considers safety, financial, operational, and privacy impacts, then calculates attack potential to determine risk. Listed outputs include traceability matrices, PDF and Excel compliance bundles, and VSOC detection rule exports. Deployment options include analyst-led engagements, managed evaluation instances, and self-hosted customer instances. Controlled self-hosted evaluations and technical demonstrations are available on request. The suite is designed to support ISO/SAE 21434, UNECE R155, and ISO 26262 activities, but it does not certify products or organisations. Pricing is available on request.

CAIRIS is an open-source platform for specifying and checking systems with security and usability requirements in view. It brings together design information such as assets, countermeasures, factoids, personas, requirements, and architectural components. As a design develops, it can generate 12 views covering perspectives such as people, risks, requirements, architecture, and physical location, as well as threat models including Data Flow Diagrams. Its security analysis uses attack and architectural patterns to assess attack surface and check for known security problems and potential GDPR compliance issues. CAIRIS can produce Volere-compliant requirement specifications and GDPR DPIA documents. Its API supports design apps and connections to existing toolchains. It is free under the Apache Software License. Deployment options include Docker, Vagrant, or source installation on supported platforms; Ubuntu is the most tested. The web app supports modern browsers other than Internet Explorer, including Edge. A Chrome extension can turn highlighted webpage text into references linked to a CAIRIS server. The live demo is rebuilt nightly, and its data is visible to everyone.