Extra Resources
Sources & DataFree Books
- Open Source Intelligence Techniques — Michael Bazzell — Official site with book updates, podcast & tools (current edition available on Amazon)
- Bellingcat Resources — Free guides, case studies & methodology articles
- Bellingcat Online Investigation Toolkit — Live, searchable toolkit maintained by Bellingcat
- SANS Reading Room — OSINT — Peer-reviewed whitepapers (free with registration)
- SANS Reading Room — Forensics — DFIR whitepapers, free
- SANS SEC497 OSINT Course — Course outline, free sample content
- NIST SP 800-150 — Guide to Cyber Threat Information Sharing — Official US gov PDF, free
- ENISA Threat Landscape 2024 — Full EU report, free PDF
- UK NCSC Threat Reports — UK government cyber threat reports
- INTERPOL Cybercrime Reports — Official INTERPOL publications hub
- Citizen Lab Publications — Academic research on digital threats, free PDFs
- RAND Open Source Intelligence Research — Peer-reviewed RAND papers
- CSIS Strategic Technologies Program — Think-tank reports on tech & security
- arXiv Cryptography & Security — Academic preprints, fully free
- FIRST.org Best Practices Guides — CSIRT best-practice guides
- MITRE ATT&CK Resources — Framework docs, FAQs, training
- Trace Labs Resources — Missing persons OSINT CTF methodology
- OSINT Dojo — Free daily challenges & training paths
- OSINT Framework — Live searchable tree of OSINT tools
- Awesome OSINT (jivoi) — Curated mega-list, GitHub
- OSINT Collection (Ph055a) — Curated free & actionable resources
- INCIBE-CERT Blog — Spanish cybersecurity articles (free)
- The DFIR Report — Real-world intrusion case studies, free
- Krebs on Security — Investigative cybersecurity journalism
- Cisco Talos Blog — Daily threat intel blog
- EFF Surveillance Self-Defense — Free multilingual guides on privacy & OPSEC
- Pwn.college — Free ASU-hosted security course platform
Courses / Certifications
- SEINT (SANS 487)
- OSINT-Do-jo – daily challenges