Learn
How the web and OSINT actually work, in plain English. Interactive tours you can run on your own connection, plus short guides. Educational, not legal advice.
Interactive
Guides & Articles
What Is OSINT?
Open-source intelligence in plain English: what counts as a public source, common uses, and the line between OSINT and hacking.
Signs of a Fake Candidate Identity
The signals worth a second look when screening remote candidates, each framed as a flag to verify rather than proof.
VoIP and Fraud Signals
Why a VoIP line type matters when screening a phone number, what it does and does not tell you, and how it shows up in candidate-fraud cases.
How Phone Number Porting Works
Numbers can move carriers and even become VoIP, so the current line type tells you far more than the area code.
What Is a Residential Proxy?
How residential proxies disguise traffic as an ordinary home user, why fraudsters use them, and what an IP address really tells you.
What Is DNS, and Why Does It Matter?
The internet's phone book, the records that matter, and why a quick lookup helps you spot a fake company or a shady email.
These materials are educational and explain publicly documented concepts. They are not legal advice. Where a claim could be read as insider knowledge, we point to the public source.