name        : Jeet Ganguly
role        : WEB & API Penetration Testing | Cyber Threat Intelligence & OSINT Analyst
focus       : OSINT · SOCMINT · Dark Web · Threat Intelligence · API Security

Cyber Threat Intelligence & OSINT Analyst. I work across threat intelligence, OSINT/SOCMINT, dark web monitoring, and offensive security — and build tools that automate investigative workflows.

🪖 Indian Army — Cyber Security Research Intern (75 Days, 2025) (Internship)

• Conducted AI-based DNS security research for detection of malicious C2 and phishing domains
• Designed AI-driven DNS filtering system integrating threat intelligence feeds and behavioral domain analysis
• Developed DNS tunneling based malware to generate 3000+ data exfiltration dn requests
• Successfully blocked 98% Data exfiltration DNS request through developed AI-driven DNS filtering software

🏢 Private Startup — Cyber Threat Intelligence & Application Security Intern (Apr 2025 – Apr 2026) (Internship)

• Monitor 100+ dark web forums and Telegram channels for emerging cyber threats
• Perform web application security testing (SQLi, XSS, IDOR, SSRF, LFI, Auth Bypass) found 50+ vulnerabilities
• Threat intelligence correlation for real-world security incidents

🐞 Bug Bounty & Vulnerability Research (Oct 2025 - Dec 2025)

• Identified 15 API vulnerabilities across public bug bounty programs over two months
• Got 2 Hall of Fames [Check Below]

🔎 Independent OSINT Investigator (Part-Time)

• OSINT investigations, social media monitoring, threat actor profiling, and intelligence documentation

AI-powered investigative intelligence platform for authorized law enforcement and licensed investigator use.

• 🧠 Local AI inference (Gemma3:12B) or (Gemma4) for image & sentiment analysis
• 👤 Face recognition & identity clustering (HOG model)
• 🌍 Commentor geolocation & country attribution
• 📄 Automated PDF threat reports with timelines & face intelligence gallery

• Designed AI-driven DNS filtering for detecting and blocking malicious C2 and phishing domains
• Integrated threat intelligence feeds and behavioral domain analysis
• Used python, ML algorithms(Random Forest), NLP, Tranformer based model, DistilRoBerta

🐛 Hall of Fame

• 🇳🇱 Netherlands Government — Security Operations Centre (SOC) Hall-of-fame page
• 💹 Delta Exchange Hall-of-fame page

🥇 CTF & Competitions

• 🏅 Finalist — NCIIPC-AICTE Pentathon 2025 (National Level)
• 🥈 2nd Place — CTF @ Urecon'24, UEM Kolkata
• 🥈 2nd Place — CTF @ Innovacion 2024, IEM Kolkata
• 🌍 7th Place — Z3R0 D4Y CTF (International), Jalpaiguri Government Engineering College
• 🌐 Top 3% Globally — TryHackMe (2025)

Threat Intelligence & OSINT

Security

Programming