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Vol. 1 · Ed. 2026
CyberGlossary
Entry № 293

Cyber Threat Intelligence (CTI) Analyst

Cyber Threat Intelligence (CTI) Analyst とは何ですか?

Cyber Threat Intelligence (CTI) AnalystA specialist who collects, structures, and disseminates intelligence about threat actors, campaigns, and TTPs — at strategic, operational, and tactical tiers — to inform defenders, IR teams, and executive decision-makers.


A Cyber Threat Intelligence (CTI) analyst produces and curates the actionable intelligence layer that sits between raw threat data and security decisions. The role splits along three classical tiers. Strategic CTI summarizes adversary motivations, geopolitical context, and long-term trends for executives and board audiences. Operational CTI characterizes specific named threat actors and campaigns (TTPs, infrastructure, victimology, targeting) for SOCs, hunt teams, and IR. Tactical CTI is the day-to-day stream of IOCs, YARA/Sigma rules, ATT&CK mappings, and feed entries that detection engineering consumes. Workflow combines OSINT, paid feeds (Mandiant, CrowdStrike Falcon Intelligence, Recorded Future, Intel 471), criminal-forum monitoring, sample collection (MalwareBazaar, VirusTotal Intelligence), and internal SOC telemetry, structured using frameworks such as MITRE ATT&CK, STIX/TAXII, Diamond Model, the Pyramid of Pain, and TLP. Outputs are written reports, intelligence briefings, IOC feeds, ATT&CK navigator layers, and pre-incident hunt packages. CTI analysts often hold GIAC GCTI, SANS FOR-578, eLearnSecurity eCTHP, or Mandiant-style certifications.

  1. 01

    A CTI analyst publishes a quarterly report on Scattered Spider's evolving social-engineering TTPs, mapping observed activity to MITRE ATT&CK Enterprise.

  2. 02

    Tactical CTI feeds the SOC a YARA rule and a list of C2 domains within hours of a new XWorm variant being observed in the wild.

よくある質問

Cyber Threat Intelligence (CTI) Analyst とは何ですか?

A specialist who collects, structures, and disseminates intelligence about threat actors, campaigns, and TTPs — at strategic, operational, and tactical tiers — to inform defenders, IR teams, and executive decision-makers. サイバーセキュリティの 役割とキャリア カテゴリに属します。

Cyber Threat Intelligence (CTI) Analyst とはどういう意味ですか?

A specialist who collects, structures, and disseminates intelligence about threat actors, campaigns, and TTPs — at strategic, operational, and tactical tiers — to inform defenders, IR teams, and executive decision-makers.

Cyber Threat Intelligence (CTI) Analyst はどのように機能しますか?

A Cyber Threat Intelligence (CTI) analyst produces and curates the actionable intelligence layer that sits between raw threat data and security decisions. The role splits along three classical tiers. Strategic CTI summarizes adversary motivations, geopolitical context, and long-term trends for executives and board audiences. Operational CTI characterizes specific named threat actors and campaigns (TTPs, infrastructure, victimology, targeting) for SOCs, hunt teams, and IR. Tactical CTI is the day-to-day stream of IOCs, YARA/Sigma rules, ATT&CK mappings, and feed entries that detection engineering consumes. Workflow combines OSINT, paid feeds (Mandiant, CrowdStrike Falcon Intelligence, Recorded Future, Intel 471), criminal-forum monitoring, sample collection (MalwareBazaar, VirusTotal Intelligence), and internal SOC telemetry, structured using frameworks such as MITRE ATT&CK, STIX/TAXII, Diamond Model, the Pyramid of Pain, and TLP. Outputs are written reports, intelligence briefings, IOC feeds, ATT&CK navigator layers, and pre-incident hunt packages. CTI analysts often hold GIAC GCTI, SANS FOR-578, eLearnSecurity eCTHP, or Mandiant-style certifications.

Cyber Threat Intelligence (CTI) Analyst からどのように防御しますか?

Cyber Threat Intelligence (CTI) Analyst に対する防御は通常、上記の定義で述べたとおり、技術的統制と運用上の実践を組み合わせます。

Cyber Threat Intelligence (CTI) Analyst の別名は何ですか?

一般的な別名: Threat intelligence analyst, CTI researcher。

関連用語