OSINT & digital footprints
What is publicly discoverable about an organisation or an individual, which sources agree with each other, and where the picture stops being reliable.
Jaskeerat Singh
OSINT · Threat Intelligence · Breach Analysis
I’m Jaskeerat Singh, a computer science student interested in cybersecurity research, OSINT and threat intelligence. I investigate digital footprints, explore security-related information from open sources, and build tools to make threat monitoring and analysis more practical. I enjoy turning technical findings into clear, structured reports.
Also on GitHub and LinkedIn. Email me at jaskeerat01.work@gmail.com.
Open-source intelligence dark web monitoring Threat intelligence breach analysis Indicator extraction security research
01
Profile
I work with open sources, and I care about what can honestly be concluded from them.
I’m a computer science student at Guru Tegh Bahadur Institute of Technology (GGSIPU), reading B.Tech in Computer Science and Engineering with a CGPA of 8.755. My focus sits in cybersecurity research — open-source intelligence, threat intelligence and breach analysis.
My interest in this field started with a personal experience of cyber fraud. Understanding how information gets collected, exposed and turned into risk gave me a reason to focus on the defensive side, and it still shapes how I work: careful investigation, evidence-based analysis, ethical research, and findings written up clearly enough for somebody else to act on.
The material I publish comes from public sources, CTF exercises and my own analysis of publicly reported incidents. I would rather publish a small finding I can defend than a large one I cannot.
02
Areas of interest
The subjects I am actively studying and practising. This is a map of where my attention is going — not a claim of professional specialisation in each one.
Threat intelligence
Following emerging threats and reading how reported incidents actually unfold, rather than how they are described.
Dark web monitoring
Watching relevant spaces for information that may matter to defenders, and working out what is worth escalating.
Breach analysis
Working through published incident reporting and separating what was claimed from what was actually confirmed.
IOC extraction & classification
Pulling indicators of compromise out of raw material and describing what each one actually represents.
Network & web security
Nmap, Wireshark and Burp Suite — and the fundamentals behind what those tools are showing me.
Linux & security labs
Practical exercises in environments built to be probed, because that is where the understanding comes from.
Research automation
Using Python and n8n to take the repetitive parts of research and monitoring off my hands.
Documentation & community
Writing up findings clearly, reviewing code, and helping other contributors move forward.
03
Selected experience
Investigation and research work, and open-source mentorship.
OSINT Intern
Cyber Secured India — November 2025 to May 2026
- Conducted OSINT investigations involving companies and individuals.
- Cross-referenced information from multiple sources to investigate digital footprints and potential exposure.
- Prepared structured investigation reports while following confidentiality and ethical practices.
Open-Source Mentor
Social Summer of Code — June 2025 to August 2025
- Mentored contributors across multiple projects.
- Provided technical guidance and code reviews.
- Assisted with debugging, optimisation and refactoring.
04
Technical skills
A working inventory of the tools and domains I use. Items are listed without proficiency ratings — depth varies, and it is still developing.
Programming & databases
- Python
- MySQL
Security tools & resources
- Nmap
- Wireshark
- theHarvester
- Sherlock
- ExifTool
- Google Dorking
- Wayback Machine
- Hunter.io
- SignalHire
- Namechk
- IntelBase
- Have I Been Pwned
- Tor
- Burp Suite
Security domains
- OSINT
- Threat Intelligence
- Dark Web Monitoring
- IOC Extraction
- Breach Analysis
- Social Engineering Defense
- Incident Response
Tools & productivity
- n8n
- Microsoft Word
- Microsoft Excel
Professional skills
- Technical Documentation
- Structured Reporting
- Attention to Detail
- Mentorship
05
Certifications & recognition
CSEDP
Certified Social Engineering Defense Practitioner with Merit. Covers phishing, vishing, impersonation defence and email security protocols.
Google Cybersecurity
Google Cybersecurity Professional Certificate.
CTRL-ALT-ACT
Award for Excellence in Cybersecurity Training, recognising OSINT performance.
Code With DCG
Award for Excellence in Hackathon.
Leadership
Cyber Security Team Lead — GeekRoom GTBIT
Design Team Co-Lead — GDG GTBIT
Roles held in student-led technical communities, contributing to collaboration and mentoring.
06
Work
01
Writeups
Ten research writeups across two collections — OSINT UK challenge write-ups and Sourcing Games — each with the method, the sources and the result behind every step.
02
Breach reports
Analysis of published data-breach material: the threat actor behind it, the techniques attributed to them, and what the exposed evidence actually shows.
03
Dark Web Threat Intelligence Engine
An automated collector for Tor hidden services that filters posts for relevance, extracts indicators of compromise, summarises threats with a local model and stores the results for review.
04
Resume
Education, professional experience, technical skills, certifications, recognition and leadership in one printable page.
07
Contact
Email and LinkedIn are the fastest routes to me. GitHub is where the code lives.