osint-methods（osint 方法）

OSINT Methods Skill

Purpose

Provides ethical Open Source Intelligence (OSINT) methodologies for political analysis, security research, and transparency projects, emphasizing verification, privacy protection, and responsible disclosure.

Rules

OSINT Principles (MUST Follow)

Core Principles:

1. Legality & Ethics
   - MUST only use publicly available information
   - MUST NOT hack, breach, or social engineer
   - MUST respect privacy and data protection laws (GDPR)
   - MUST follow responsible disclosure for vulnerabilities
   - MUST NOT collect or retain personal data unnecessarily

2. Verification & Accuracy
   - MUST verify information from multiple sources
   - MUST distinguish fact from opinion
   - MUST track source credibility and bias
   - MUST document collection methodology
   - MUST correct errors promptly

3. Privacy & Security
   - MUST anonymize sensitive information
   - MUST use VPN/Tor when appropriate
   - MUST protect source confidentiality
   - MUST secure collected data
   - MUST dispose of data appropriately

4. Transparency & Attribution
   - MUST cite sources and methodology
   - MUST disclose limitations and biases
   - MUST distinguish between collection and analysis
   - MUST provide context for findings

OSINT Collection Framework

Intelligence Cycle:

1. Planning & Direction
   - Define intelligence requirements
   - Identify information gaps
   - Prioritize collection efforts
   - Establish ethical boundaries

2. Collection
   - Gather data from public sources
   - Document source metadata
   - Preserve digital evidence
   - Maintain chain of custody

3. Processing & Exploitation
   - Organize collected information
   - Extract relevant data points
   - Convert formats as needed
   - Tag and categorize findings

4. Analysis & Production
   - Verify information accuracy
   - Identify patterns and relationships
   - Contextualize findings
   - Generate intelligence products

5. Dissemination & Feedback
   - Share findings with stakeholders
   - Protect sensitive information
   - Solicit feedback and questions
   - Refine collection priorities

OSINT Sources & Categories

Public Records & Databases:

Government Sources:
- Corporate registries (Bolagsverket in Sweden)
- Public procurement databases
- Court filings and legal documents
- Parliamentary records and votes
- Freedom of Information (FOI) responses
- Property and land records
- Regulatory filings

International Sources:
- EU transparency register
- UN databases
- World Bank open data
- ICIJ databases (Offshore Leaks, Paradise Papers)

Digital Footprints:

Social Media:
- LinkedIn (professional networks)
- Twitter/X (public statements, opinions)
- Facebook (groups, pages, events)
- Instagram (visual content, locations)
- YouTube (video content, comments)

Websites & Domains:
- WHOIS lookups
- Historical snapshots (Wayback Machine)
- SSL certificate transparency logs
- DNS records and subdomains
- Metadata analysis

News & Media:

Traditional Media:
- News articles and archives
- Press releases
- Broadcast transcripts
- Investigative reports

Alternative Media:
- Blogs and independent journalists
- Podcasts and video channels
- Newsletters
- Community forums

Technical Intelligence:

Network Intelligence:
- IP address geolocation
- Autonomous System (AS) information
- BGP routing data
- Shodan/Censys IoT/device searches

Document Intelligence:
- Leaked documents (WikiLeaks, SecureDrop)
- FOIA documents
- Academic research papers
- Technical reports and whitepapers

OSINT Tools & Techniques

Search & Discovery:

Google Dorking:
- site:gov.se "contract award"
- filetype:pdf "annual report" Sweden
- intitle:"index of" procurement
- inurl:admin site:example.com

Social Media Tools:
- Twitter Advanced Search
- LinkedIn Sales Navigator
- Facebook Graph Search
- Instagram location search
- Reddit search and archives

Specialized Search:
- Shodan (IoT devices, exposed services)
- Censys (internet-wide scans)
- FOCA (metadata extraction)
- Maltego (link analysis)
- Recon-ng (OSINT framework)

Verification Techniques:

Image Verification:
- Reverse image search (Google, TinEye, Yandex)
- EXIF metadata analysis
- Geolocation from visual clues
- Photo forensics (FotoForensics)

Account Verification:
- Cross-platform username search
- Account creation date verification
- Follower/network analysis
- Content history review

Document Verification:
- Metadata analysis
- Format forensics
- Language and style analysis
- Cross-reference with known documents

OSINT Analysis Methods

Link Analysis:

Network Mapping:
- Identify relationships between entities
- Map organizational structures
- Trace financial flows
- Visualize influence networks

Tools:
- Maltego
- Gephi
- NodeXL
- i2 Analyst Notebook

Timeline Analysis:

Chronological Mapping:
- Sequence events accurately
- Identify temporal patterns
- Correlate activities across sources
- Detect anomalies and gaps

Techniques:
- Event extraction from documents
- Date correlation across sources
- Activity pattern analysis
- Behavioral change detection

Pattern Recognition:

Behavioral Patterns:
- Communication patterns
- Location patterns
- Financial patterns
- Social network patterns

Anomaly Detection:
- Unusual transactions
- Pattern breaks
- Timing anomalies
- Relationship changes

GDPR Compliance in OSINT

Data Protection Requirements:

Lawful Basis:
- MUST have legitimate interest or consent
- MUST conduct Data Protection Impact Assessment (DPIA)
- MUST document legal basis for processing

Data Minimization:
- MUST collect only necessary information
- MUST NOT retain data longer than needed
- MUST delete or anonymize when possible

Individual Rights:
- MUST provide transparency about collection
- MUST allow access, rectification, erasure requests
- MUST respect opt-out and do-not-track

Security Measures:
- MUST encrypt stored OSINT data
- MUST restrict access to authorized personnel
- MUST log and monitor data access
- MUST have breach notification procedures

Responsible Disclosure

Vulnerability Disclosure:

Process:
1. Identify security vulnerability in public system
2. Document finding with screenshots/evidence
3. Contact organization privately (security@domain)
4. Allow 90 days for remediation
5. Coordinate public disclosure if appropriate
6. Do NOT exploit or share exploit code

Example Message:
"I've identified a potential security issue in your system
during research. I'd like to report it responsibly. Please
confirm the best way to share details securely."

OSINT Documentation Standards

Research Documentation:

Collection Record:
- Source URL and access date
- Preservation method (screenshot, archive.org, PDF)
- Search queries or discovery method
- Relevance to intelligence requirement
- Initial assessment notes

Analysis Documentation:
- Analytical framework used
- Key findings and evidence
- Confidence level (High/Medium/Low)
- Alternative hypotheses considered
- Limitations and gaps
- Recommendations

Report Structure:
1. Executive Summary
2. Intelligence Requirements
3. Methodology
4. Findings (with evidence)
5. Analysis and Assessment
6. Confidence Levels
7. Recommendations
8. Appendices (sources, tools, raw data)

Examples

OSINT Research Request Template

## Intelligence Requirement

**Topic**: [Specific question or information need]
**Purpose**: [How findings will be used]
**Priority**: High / Medium / Low
**Deadline**: [Date]

**Scope**:
- Geographic: [Countries, regions]
- Temporal: [Time period]
- Entities: [Organizations, individuals, topics]

**Constraints**:
- Legal: [GDPR, privacy laws]
- Ethical: [Sensitive topics, personal data]
- Technical: [Access limitations]

**Deliverable**: [Report format, briefing, database]

Source Credibility Assessment

## Source Evaluation

**Source**: [Name, URL, type]
**Date Accessed**: [YYYY-MM-DD]

**Credibility Factors**:
- Authority: [Subject matter expertise] ⭐⭐⭐⭐☆
- Accuracy: [Verification record] ⭐⭐⭐⭐⭐
- Objectivity: [Bias assessment] ⭐⭐⭐☆☆
- Currency: [Timeliness] ⭐⭐⭐⭐☆
- Coverage: [Depth and breadth] ⭐⭐⭐⭐☆

**Overall Rating**: 4/5 - Reliable with minor bias

**Notes**: [Specific observations about source reliability]

OSINT Report Template

# OSINT Report: [Topic]

**Classification**: Public / Internal / Confidential
**Date**: [YYYY-MM-DD]
**Analyst**: [Name]

## Executive Summary
[2-3 paragraph summary of key findings]

## Intelligence Requirements
[What questions this research aimed to answer]

## Methodology
- **Sources**: [Types of sources used]
- **Tools**: [OSINT tools employed]
- **Time Period**: [Research duration]
- **Limitations**: [Known gaps or constraints]

## Key Findings

### Finding 1: [Title]
**Confidence**: High / Medium / Low
**Evidence**: [Supporting information with sources]
**Analysis**: [What this means]

### Finding 2: [Title]
[Same structure]

## Assessment & Implications
[Analysis of what findings mean in context]

## Recommendations
[Actionable suggestions based on findings]

## Appendices
- Appendix A: Source List
- Appendix B: Methodology Details
- Appendix C: Raw Data

Related Policies

• Hack23 ISMS-PUBLIC
• GDPR Compliance SKILL
• Data Classification SKILL
• Ethical Information Operations SKILL

Related Documentation

• political-analyst Agent

Tools & Resources

OSINT Frameworks:

• OSINT Framework - Tool directory
• Bellingcat's Online Investigation Toolkit

Training Resources:

• Bellingcat's Online Investigation Workshops
• SANS SEC487: Open-Source Intelligence (OSINT) Gathering and Analysis
• Trace Labs OSINT Search Party Events

Verification Tools:

• InVID/WeVerify (video/image verification)
• Google Fact Check Explorer
• Full Fact (UK fact-checking)

Privacy & Security:

• Tor Browser
• ProtonVPN
• Tails OS (for sensitive research)