description	Cyber threat intelligence and OSINT resources for indicators, threat data, enrichment, source evaluation, and intelligence workflows.

Cyber Intelligence

Cyber intelligence turns public and private security data into decisions: what matters, why it matters, who needs to know, and what action should follow. This section covers CTI concepts, feed management, indicator enrichment, and OSINT workflows.

Core Analyst Responsibilities

1. Collect actionable intelligence - Gather reporting, advisories, technical indicators, campaign details, vulnerabilities, and public-source evidence.
2. Manage indicators - Evaluate source quality, indicator fidelity, decay, false positives, and how feeds integrate with security tools.
3. Enrich indicators - Add context such as ASN, domain age, passive DNS, actor reporting, campaign links, observed malware, infrastructure relationships, and blacklist/reputation results.
4. Produce and disseminate intelligence - Turn findings into useful outputs for defenders, leaders, incident responders, vulnerability teams, or investigators.

Section Map

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Intelligence Disciplines

• Cyber Threat Intelligence (CTI) - Analysis of adversary capabilities, intent, infrastructure, targets, tooling, TTPs, indicators, and operational impact.
• Open-Source Intelligence (OSINT) - Publicly available information collected and analyzed to answer an intelligence requirement.
• Geospatial Intelligence (GEOINT) - Location-focused analysis using maps, imagery, satellite data, terrain, and geospatial context.
  • OH SHINT GEOINT Links
• Imagery Intelligence (IMINT) - Image and media analysis, including visual verification and metadata review.

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• Signals Intelligence (SIGINT) - Intelligence derived from communications or electronic signals. This guide treats public SIGINT-like resources cautiously and keeps practical workflows inside OSINT.
  • OH SHINT SIGINT Links
• Human Intelligence (HUMINT) - Intelligence from human sources. In this guide, authorized public-source interviews, debriefs, and community reporting are more relevant than espionage-style HUMINT.
• Measurement and Signature Intelligence (MASINT) - Technical signatures derived from physical or measurable characteristics. This is mostly outside the practical scope of the guide.

Intelligence Cycle

The intelligence cycle is the process for turning requirements into useful products:

1. Planning and direction - Define the question and decision the intelligence must support.
2. Collection - Gather relevant data from sources that can answer the requirement.
3. Processing - Normalize, deduplicate, index, translate, enrich, and prepare the data for analysis.
4. Analysis and production - Assess the evidence, identify confidence levels, and produce the intelligence output.
5. Dissemination - Deliver the output to the people or systems that can act on it.
6. Feedback and evaluation - Learn whether the output helped and refine the next requirement.

The cycle is iterative. Analysis often exposes new collection gaps, and feedback can change the original requirement.

Reference and Theory

• Intelligence.gov: How Intelligence Works
• Sergio Caltagirone: Intelligence Cycle
• Sergio Caltagirone: F3EAD
• Joint Publication 2-0: Joint Intelligence
• Psychology of Intelligence Analysis
• Getting Started with ATT&CK: Threat Intelligence
• Using ATT&CK to Advance Cyber Threat Intelligence - Part 1
• Using ATT&CK to Advance Cyber Threat Intelligence - Part 2
• SANS: ATT&CKing the Status Quo

CTI and OSINT training resources have been moved to Training.

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