Articles

Review of Vortimo, an application that is designed to capture information within your browser, and help you to organize collected evidence.

It was 1999 when Roelof Temmingh had an idea to start a company that would become Sensepost. Less than ten years later, around 2007, he set up Paterva, the co...

This is an overview of my favourite podcasts out there in the world of security, investigations and OSINT.

I love podcasts, and for years they have replaced listening to music for me. During commuting I usually listen to an episode of one of the podcasts featured in here, or even when I do some ch...

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.

Ea...

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.

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.