OpenIOC vs STIX: Framework for Sharing Threat Intelligence

350-701 By islever Editorial Last updated

Describe security intelligence authoring, sharing, and consumption

Short answer

A OpenIOC is the open framework defined for sharing threat intelligence in a machine-digestible format.

Question

Which open standard creates a framework for sharing threat intelligence in a machine-digestible format?
  1. OpenIOC Correct Answer
  2. OpenC2
  3. CybOX
  4. STIX

Key Takeaways

The question tests specific vendor-defined terminology where OpenIOC is labeled the 'framework' for machine-digestible sharing, while STIX is often described as a 'language' or 'standard' for common expression.

This question tests the distinction between OpenIOC and STIX regarding threat intelligence sharing frameworks. The correct answer is A (OpenIOC) because it is explicitly defined in Cisco exam materials as an open framework for sharing threat intelligence in a machine-digestible format.

Common mistake: Most candidates select D (STIX) because it is the industry-standard open protocol for sharing threat intelligence. However, the exam source material specifically attributes the phrase 'open framework... in a machine-digestible format' to OpenIOC.

Expert Analysis

Why the Answer Is Correct

Correct answer: A — OpenIOC (Open Indicators of Compromise) is the correct choice based on the official Cisco 350-701 study guide. The text explicitly defines OpenIOC as 'An open framework for sharing threat intelligence in a machine-digestible format.' This exact phrasing matches the question's requirement.

Why the Other Options Are Wrong

STIX (D) is a language for describing cyber threat information, but the specific definition in the Cisco curriculum distinguishes it from the 'framework' label given to OpenIOC. OpenC2 (B) is a command and control standard for security devices, not primarily for intelligence sharing frameworks. CybOX (C) is a vocabulary for expressing cybersecurity observations, which serves as the foundation for STIX but is not the framework itself.

Community Comment Notes

Many learners initially chose STIX due to its widespread industry adoption, with comments noting 'I first thought it was STIX'. However, others pointed to the Official Cert Guide page 86 and 15, quoting 'Open Indicators Of Compromise (OpenIOC): An open framework for sharing threat intelligence in a machine-digestible format.' These users correctly identified that the exam relies on this specific textbook definition rather than general industry consensus.

Exam Strategy

For the 350-701 exam, memorize specific definitions from the Official Cert Guide verbatim. When asked about a 'machine-digestible framework,' associate it with OpenIOC if the courseware uses that specific wording, even if STIX is more common in practice.

Frequently Asked Questions

Why is OpenIOC the answer instead of STIX?

Cisco's Official Cert Guide explicitly defines OpenIOC as the 'open framework for sharing threat intelligence in a machine-digestible format.' You must follow the book's specific wording.

What is the difference between OpenIOC and CybOX?

CybOX provides the vocabulary for observations, while OpenIOC is the framework that uses those observations to describe indicators of compromise for sharing.

More 350-701 FAQ →

Discussion 22 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 22

  1. Net4dd 👍 5
    D. STIX (Structured Threat Information eXpression) is an open standard that creates a framework for sharing threat intelligence in a machine-digestible format. It enables organizations to share cyber threat intelligence, including information on adversaries, malware, vulnerabilities, and attack patterns, in a structured and consistent way. OpenIOC (Open Indicator of Compromise) is an open-source framework for representing threat intelligence in a machine-readable format. It is used to describe the characteristics of malware, intrusion attempts, and other malicious activity in a way that can be easily understood and acted upon by security systems and tools.
  2. jku2cya 👍 2 Answered A
    Prefer A over D. "OpenIOC is an open framework, meant for sharing threat intelligence information in a machine-readable format." : https://cyware.com/security-guides/cyber-threat-intelligence/what-is-open-indicators-of-compromise-openioc-framework-ed9d "STIX provides a common language for describing cyber threat information so it can be shared" : https://stixproject.github.io/about/
  3. achille5 👍 2 Answered D
    STIX, as it is the open standard that provides a framework for sharing threat intelligence, including indicators of compromise, in a machine-readable format. While OpenIOC is also an open standard for sharing threat intelligence, it is more narrowly focused on describing IOCs specifically, and does not provide a comprehensive framework for sharing all types of threat intelligence.
  4. Mjestic 👍 2 Answered A
    I first thought it was STIX (which is also open source) but some sites mentions the following : "OpenIOC is an open framework, meant for sharing threat intelligence information in a machine-readable format." Source : https://cyware.com/educational-guides/cyber-threat-intelligence/what-is-open-indicators-of-compromise-openioc-framework-ed9d
  5. leowulf 👍 2
    A Open Indicators Of Compromise (OpenIOC): Open framework for sharing threat intelligence in a machine-digestible format. Learn more at http://www.openioc.org/. https://www.ciscopress.com/articles/article.asp?p=2455014&seqNum=3#:~:text=Open%20Indicators%20Of%20Compromise%20(OpenIOC,in%20a%20machine%2Ddigestible%20format.
Show 17 more comments
  1. RemiK 👍 2 Answered A
    CCNP And CCIE Security Core SCOR 350-701 Official Cert Guide.pdf (page 86) "Open Indicators of Compromise (OpenIOC): An open framework for sharing threat intelligence in a machine-digestible format. Learn more at http://www.openioc.org." Answer A. No doubt.
  2. Pages 👍 2
    Also on page 15 , CCNP And CCIE Security Core SCOR 350-701 Official Cert Guide.pdf (page 15 ) : Open Indicators of Compromise (OpenIOC): An open framework for sharing threat intelligence in a machine-digestible format. Learn more at http://www.openioc.org.
  3. diverjim64 👍 2 Answered A
    p. 15 OCG
  4. Mulema 👍 1
    My answer is D Which open standard creates a framework for sharing threat intelligence in a machine-digestible format? OpenIOC, OpenC2, CybOX, STIX The open standard that creates a framework for sharing threat intelligence in a machine-digestible format is STIX (Structured Threat Information eXpression). STIX is a JSON-based schema that defines a common format for representing and sharing threat intelligence information. This includes information about adversaries, malware, vulnerabilities, intrusions, and other cyberthreats. STIX is designed to be machine-readable, so that it can be easily shared and processed by computers. This makes it a valuable tool for organizations that need to share threat intelligence with each other to protect their networks. https://bard.google.com/chat/e3b8e30fe3160083
  5. XBfoundX 👍 1 Answered A
    As many other has mentioned this the correct answer is A: OpenIOC (Open Indicators of Compromise) is an open framework and XML-based standard created by Mandiant. It allows security teams to describe, capture, and share technical details about cyber threats—such as malware signatures, registry modifications, or file paths—in a structured, machine-readable format for real-time threat detection STIX (Structured Threat Information Expression) is a free, open standard language used to describe and share cyber threat intelligence in a clear, machine-readable format. It lets security tools and teams share details about malware, attackers, and suspicious activity the same way.
  6. PiX2 👍 1 Answered A
    As per the official cert guide, definition is clear : Open Indicators of Compromise (OpenIOC): An open framework for sharing threat intelligence in a machine-digestible format. Structured Threat Information eXpression (STIX): An express language designed for sharing of cyber-attack information. STIX details can contain data such as the IP addresses or domain names of command-and-control servers (often referred to C2 or CnC), malware hashes, and so on. STIX was originally developed by MITRE and is now maintained by OASIS.
  7. Pierre_Bouvier 👍 1 Answered D
    STIX (Structured Threat Information Expression) is an open standard that provides a framework for sharing cyber threat intelligence in a structured, machine-readable format. It enables organizations to share detailed information about threats, including indicators, tactics, techniques, and procedures (TTPs), to improve collective cybersecurity. Other options: A. OpenIOC: A framework for sharing threat indicators but less comprehensive than STIX and not as widely adopted.
  8. Makate 👍 1 Answered D
    STIX: Structured Threat Information eXpression (STIX) is the correct answer. It is a standardized language and serialization format for exchanging cyber threat intelligence (CTI). It provides a structured way to represent a wide range of threat intelligence data, including indicators of compromise, attack patterns, threat actors, and campaigns, making it machine-digestible. STIX is the most widely adopted and comprehensive open standard for this purpose.
  9. A_Wolf 👍 1 Answered A
    I'll go with A too. Cisco being cisco loves to have the answers from their Official Certification Guides. The guide mentions literally what teh question asks., A OpenIOC
  10. SomKeat 👍 1 Answered D
    The open standard that creates a framework for sharing threat intelligence in a machine-digestible format is STIX (Structured Threat Intelligence eXpression)
  11. Directly_Connected 👍 1 Answered A
    Open Indicators of Compromise (OpenIOC): An open framework for sharing threat intelligence in a machine-digestible format. Source Study Guide Page113
  12. Premium_Pils 👍 1
    Both XML (openioc) and JSON (stix) are machine readable formates. Plus, both openioc and stix seem to be frameworks. Which one is correct then?
  13. west33637 👍 1
    Hello Net4dd. Whats the source of the above definition for STIX?
  14. mschott 👍 1 Answered A
    Based on Cisco Official Guide, the correct answer is OpenIOC
  15. Pages 👍 1
    Thats the diverence between, digital and the physical book.
  16. testtaker13 👍 1 Answered D
    STIX in my opinion is a framework
  17. Emlia1 👍 1 Answered A
    I prefer A

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