OSINT
Open-source intelligence reference: how to collect, verify, and analyze publicly available information about people, organizations, and infrastructure, and how defenders limit what can be discovered about them.
This category is written in the two-track format (Offensive / Defensive),
with an additional section ## Pentest and Red Team Application in every file
that ties the technique to authorized offensive engagements.
CAUTION
Authorized use only. All material is provided for educational purposes and authorized testing.
See ../SECURITY.md for the full policy.
Scope
- OSINT methodology: collection planning, source evaluation, verification.
- People search: identity resolution, social media, public records.
- Infrastructure OSINT: domains, certificates, DNS, cloud assets, Shodan/Censys.
- Social media and content: platform-specific collection, geolocation, media forensics.
- Corporate and business OSINT: corporate registries, filings, employee mapping, supply chain.
Subcategories
| # | Subcategory | Files | Focus |
|---|---|---|---|
| 01 | OSINT Methodology | 4 | Collection planning, source evaluation, verification |
| 02 | People Search | 4 | Identity resolution, social media, public records |
| 03 | Infrastructure OSINT | 0 | Domains, certificates, DNS, cloud assets, Shodan/Censys |
| 04 | Social Media and Content | 0 | Platform-specific collection, geolocation, media forensics |
| 05 | Corporate and Business OSINT | 0 | Corporate registries, filings, employee mapping, supply chain |
Format
Files in this category follow the two-track skeleton plus one OSINT-specific section:
## 1. Overview
## 2. Reconnaissance / Collection
## 3. Common Attack Vectors
## 4. Exploitation Recipes
## 5. Post-Exploitation
## 6. Preventive Controls
## 7. Detection Controls
## 8. Verification
## 9. Pentest and Red Team Application
## 10. Legal and Ethical Notes
## 11. Production Notes
## 12. References
The Offensive track covers sections 2-5 (collection through post-exploitation). The Defensive track covers sections 6-8 (preventive controls, detection, verification). Section 9 ties the technique to authorized offensive engagements. Section 10 covers jurisdiction, consent, and legal boundaries - OSCP does not cover OSINT, so the exam-notes section is replaced by legal notes.
Related Categories
- APPLICATIONS - web application security and API testing.
- INFRASTRUCTURE - infrastructure attack and defense.
- CLOUD - cloud security and asset discovery.
- INFORMATION_SECURITY - governance, risk, compliance.
- CTI (planned) - threat intelligence that consumes OSINT sources.
Authorized Use Only
The techniques in this category are for authorized security testing, CTF environments, and educational purposes only. Do not use them against people or systems you do not own or have explicit written permission to investigate. OSINT collection about individuals may be subject to privacy law in your jurisdiction (GDPR, CCPA, and others). See SECURITY.md in the repository root.
References
- OSINT Framework - https://osintframework.com/
- Bellingcat's Online Investigation Toolkit - https://bellingcat.gitbook.io/toolkit
- SANS OSINT Summit resources - https://www.sans.org/cyber-security-training/
- NIST SP 800-53 (Privacy controls) - https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final