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@adulau@infosec.exchange
2025-11-26 21:10:41

MISP core format has been updated with a new field to track first-time publication, and a new IETF Internet-Draft has been published.
This minor, fully backward-compatible addition reinforces the long-term stability and extensibility of the MISP standard format.
#cti #opensource

MISP core format
This document describes the MISP core format used to exchange indicators and threat information between MISP (Open Source Threat Intelligence Sharing Platform formerly known as Malware Information Sharing Platform) instances. The JSON format includes the overall structure along with the semantic associated for each respective key. The format is described to support other implementations which reuse the format and ensuring an interoperability with existing MISP [MISP-P] software and other Threat…