# Cyber Threat Information Collaboration Environment **Entity class:** Cyber-threat information-sharing environment **Aliases:** CTICE ## Definition The **Cyber Threat Information Collaboration Environment (CTICE)** was a federal cloud-oriented concept for sharing classified and unclassified cyber-threat information, collaborative analysis, tools, and interoperable data among government and private-sector partners. It belongs near the ICE family because its name and architecture emphasize collaboration across institutional boundaries, but its acronym is CTICE rather than ICE. ## Relationships - **federal route:** [[wiki/Cybersecurity and Infrastructure Security Agency|CISA]] and DHS information-sharing programs. - **domain:** [[wiki/Cyber Threat Intelligence|Cyber Threat Intelligence]], public-private sharing, and whole-of-government awareness. - **architectural peer:** [[wiki/Purple ICE|Purple ICE]] and [[wiki/Intelligence Community|IC]] data environments. - **disambiguation route:** [[wiki/ICE|ICE disambiguation]]. ## Sources / Provenance - [Federal Register search — Cyber Threat Information Collaboration Environment](https://www.federalregister.gov/documents/search?conditions%5Bterm%5D=Cyber+Threat+Information+Collaboration+Environment)