Here you can find all the published articles (still migrating some from Medium. Including your weekly dose of OSINT news published every Monday at 8:00 AM CEST!
In this article I'll show you how you can use QGIS to view aerial and satellite imagery by using publicly available datasets via Web Map Tile Service.
I've been going over the book Full Stack Recruiter: The Ultimate Edition, that has its target audience in the field of recruitment. But I found it very helpful for other people too, so in this article I am sharing my thoughts about the book from the perspective as an open source investigator.


Sometimes things don't go as planned, like a new blog post I was writing last year, but the post got scrapped. I found something that I didn't expect and ethics won in that case, since I think it was the right thing to do.

It was May 15, 2019 and I was writing the blog post cURL for the OSINT Cur...

A second part on my journey into the world of Google ID's

In December last year I think I wrote one of my most successful articles yet, on how to trace a possible identity via a Gmail address. But life and work happened, and even though I discovered a lot more things, I never had the time and po...

There aren’t an awful lot of movies or series where open source investigations play a major role, but I did manage to find some. So in case you want to spend some time watching something nice during the holidays, here are my personal recommendations.
After my ‘Week in OSINT #2019–49’ went live, I received questions about Google userID’s, how you can find them and what you can actually do with them. So I decided it was time to write a short article about it.

Update: On May 25, 2020 I posted part II with some more hints and tips.

A new phenomenon that injects your Google Calendar with spam, a basic guide into a small investigation

Well, that was a first! I received a notification this morning that one of my many Google accounts had an invitation to uhm… Receive money? And it would repeat this for 30 days in a row, probably...

This story is about the time I found a flaw in a ticket site some time ago, but since I was extremely busy in 2018 I never got around to write it down. But I finally took the time to share a little story of how a badly configured website can be used to break into a house.