Back to the OSINT sectionOSINT case studies

Investigate like an analyst

Eight guided investigations built on real techniques: you analyze real-looking evidence (certificates, headers, DNS, Shodan results…), answer at each step and get a detailed correction.

Beginner45 min - 1 h5 steps

Reconnaissance of a target company

Map Veltara Logistics’ exposure using open sources only, the way an attacker would before a campaign.

crt.shdig / DNSDumpsterShodanHunter.io
Start the investigation
Intermediate1 h - 1 h 305 steps

Investigating a phishing email

A “payslip” email was reported by several employees. Analyze the headers, the link and the infrastructure to trace it back to the attacker.

MXToolbox Header Analyzerurlscan.ioWHOIS / RDAPVirusTotal
Start the investigation
Intermediate1 h5 steps

Geolocating a photo

A photo posted without a caption must be geolocated and dated. Use every visual clue, the way Bellingcat investigators or GeoGuessr players do.

ExifToolGoogle Lens / Yandex ImagesGoogle Street ViewMapillary
Start the investigation
Intermediate1 h - 1 h 305 steps

Digital footprint of a username

One of your company’s API keys leaked on GitHub from an unknown account. Link that username to a person, separating solid evidence from false positives.

Sherlock / MaigretGitHub API (.patch)WhatsMyNameGoogle Lens
Start the investigation
Intermediate45 min - 1 h5 steps

Fact-checking a viral claim

A dramatic flood photo, presented as taken “this morning in Lyon”, is shared thousands of times. Check the source, the image, the date and the spread.

Google LensTinEye (tri par date)Yandex ImagesInVID-WeVerify
Start the investigation
Advanced1 h 305 steps

Analyzing a claimed data breach

An actor claims on a forum to have stolen an insurer’s customer database. Assess the data’s authenticity, freshness and origin before the crisis escalates.

Have I Been Pwnedhashid / hash-identifierDeHashed (cadre légal)Intelligence X
Start the investigation
Advanced1 h 30 - 2 h5 steps

Mapping malicious infrastructure

Starting from a single phishing domain, pivot on the IP, certificates, favicon and registration data to uncover the rest of the attacker’s infrastructure.

VirusTotal / RiskIQcrt.sh / CensysShodan (http.favicon.hash)RDAP
Start the investigation
Advanced1 h 305 steps

Detecting a coordinated campaign

A hashtag hostile to a company trends within hours. Analyze accounts, content and timing to decide whether it is spontaneous anger or a coordinated operation.

API / export de la plateformeGephi (graphe des interactions)Botometer-like scoringOpenRefine
Start the investigation

All data is fictional. In real life, OSINT is practiced within a legal framework: a mandate, proportionality and respect for privacy.

CyberXTEL
100% Free

Ready to put it into practice?

CyberXTEL is our free platform to train hands-on: certifications, CTFs and a dedicated cyber awareness space.

Discover CyberXTEL