STIX2.1 Overview

We are pleased to announce that STIX™ Version 2.1  and TAXII™ Version 2.1 from the OASIS Cyber Threat Intelligence (CTI) TC are now available for public review and comment.

Structured Threat Information Expression (STIX™) is a language and serialization format used to exchange cyber threat intelligence. STIX enables organizations and tools to share threat intelligence with one another in a way that improves many different capabilities, such as collaborative threat analysis, automated threat exchange, automated detection and response, and more.

STIX V2.1 adds new objects and concepts and incorporates improvements based on experience implementing version 2.0. The objects and features added for inclusion represent an iterative approach to fulfilling basic consumer and producer requirements for CTI sharing. Objects and properties not included in this version of STIX, but deemed necessary by the community, will be included in future releases.

Trusted Automated Exchange of Intelligence Information (TAXII) is an application layer protocol used to exchange cyber threat intelligence (CTI) over HTTPS. It enables organizations to share CTI by defining an API that aligns with common sharing models.

TAXII is specifically designed to support the exchange of CTI represented in STIX. As such, the examples and some features in the specification are intended to align with STIX. This does not mean TAXII cannot be used to share data in other formats; it is designed for STIX, but is not limited to STIX.

Jane Ginn CTIN President & Co-Founder

Jane Ginn ~ As the co-founder of the Cyber Threat Intelligence Network (CTIN), a consultancy with partners in Europe, Ms. Ginn has been pivotal in the development of the STIX international standard for modeling and sharing threat intelligence. She currently serves as the Secretary of the OASIS Threat Actor Context Technical Committee, contributing to the creation of a semantic technology ontology for cyber threat actor analysis. Her efforts in this area and her earlier work with the Cyber Threat Intelligence (CTI) TC earned her the 2020 Distinguished Contributor award from OASIS. In public service, she advised five Secretaries of the US Department of Commerce on international trade issues from 1994 to 2001 and served on the Washington District Export Council for five years. In the EU, she was an appointed member of the European Union's ENISA Threat Landscape Stakeholders' Group for four years. A world traveler and amateur photojournalist, she has visited over 50 countries, further enriching her global outlook and professional insights. Follow me on LinkedIn: www.linkedin.com/comm/mynetwork/discovery-see-all?usecase=PEOPLE_FOLLOWS&followMember=janeginn

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