OpenCTI
OpenCTI is an open-source platform for structuring and visualising cyber-threat intelligence using the STIX 2 data model.
Legal & ethical use. Use this tool only on systems, networks and data that you own or have explicit written permission to test. Unauthorised access or scanning can break computer-misuse laws (for example Pakistan's Prevention of Electronic Crimes Act, 2016, and equivalents elsewhere). Practise in your own lab or in authorised environments such as CTFs.
What it is used for
- Model threat actors, malware and campaigns as a knowledge graph
- Import feeds through connectors
Key features
- STIX 2 data model
- Connectors
- Graph visualisation
Installation
See the OpenCTI documentation (Docker deployment).
Beginner usage guide
Deploy in a lab, enable the MITRE ATT&CK connector and explore relationships between techniques.
Example commands
Run these only against your own lab or authorised targets. Placeholder addresses such as 192.0.2.x are documentation ranges.
Concept (UI)
Threats → Intrusion sets → KnowledgeFollow relationships to techniques and tools.
References
Source verification
Last reviewed: 2026-10-27
Links checked over HTTP: 2026-10-27 07:51 UTC — official: 200, docs: 200, repo: 200
Commands were written from the official documentation and have not been executed on this site; test them in your lab.