🕵️ The solution to OSINT Olympics 2026 is now live on Youtube! 🌡️Level: Hard 🔥🔥🔥 🖥️ Check out the video walkthrough where I explain how to complete all tasks. ✅ Did you solve it? #osintchallenge youtu.be/uANOWz2y7Uk

OSINT Olympics 2026 | Solution and full walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

@cen4infores.bsky.social is hiring! Are you the unicorn we are looking for? 🦄 🇦🇫 Afghan Specialist - Digital Security Trainer 🇧🇫 Burkina Faso - Senior Researcher Also looking for 🇦🇫 Afghan investigators for the talent pool. ⚠️ All closing soon so don't waste time! apply.workable.com/centre-for-i...

I have received numerous messages from people with their answer to my latest challenge. Not a single one so far was correct. The problem is as old as time: confirmation bias. I hope my upcoming video walkthrough makes sense, but in the meanwhile, here's a sneak preview. youtube.com/shorts/wxgGK...

Sneak peak of OSINT Olympics 2026 Challenge Walkthrough

YouTube video by Gralhix - Sofia Santos

youtube.com

😲 An (OSINT) Bonus Challenge appears! 🕵️ "OSINT Olympics 2026" (not actually related to the Olympics, don't get confused) 🌡️ Level: Hard ⏰ Solution with full walkthrough will be uploaded to YouTube at the end of the week. 🙊 Have fun and no spoilers! #osintchallenge gralhix.com/osint-olympics-2026

OSINT Olympics 2026

Welcome to OSINT Olympics 2026 Challenge! Task briefing: The photo on the right contains clear evidence of having been taken on a cold evening. But that is just the tip of the iceberg. Hiding among…

gralhix.com

My website has a new look! This upgrade has been a long time coming as I often felt my "old" website was a bit crappy 😬 I'm not a web designer so it's still not perfect, but I'm much happier with how it looks now. Check it out! ❤️ gralhix.com

Sofia Santos | Gralhix

OSINT Challenges, Analysis & Tutorials

gralhix.com

Do you want to investigate human rights violations? Protests in Iran are spreading and authorities escalating efforts to suppress them. In 2022, I wrote a guide using Iran as a case study. All methods and keywords still very relevant (and you dont even need X/tweetdeck). gralhix.com/2022/12/17/h...

How to monitor oppressive regimes on Twitter using TweetDeck

This entry was updated in April 2023 to cover the new TweetDeck layout and settings (Click here to watch and listen to the video version of this blog entry) Twitter and TweetDeck as monitoring tool…

gralhix.com

For my 2nd challenge for @osint4fun.eu's Advent of OSINT 2025 you will need to identify the airline, make and model of the aircraft seen in the photo below. Can you do it? 🤔 Enter your answer on OSINT4Fun's page to confirm whether you were right 🎅 Best of luck! www.osint4fun.eu/advent2025/2...

The answer to this OSINT challenge will reveal my favourite Christmas film of all time 😍 This @osint4fun.eu's Advent calendar challenge has a twist. You start with the coordinates but these point to.. nothing..? 🤔 Enjoy and please, NO SPOILERS in the comments! www.osint4fun.eu/advent2025/2...

Know how to make online communities feel like home (and stay organised doing it)? Bellingcat needs a Community Operations and Project Manager to support our growing global Volunteer Community and to help run Bellingcat’s Investigative Toolkit project. Apply here: www.bellingcat.com/bellingcat-j...

1/6 It’s that time of the year again. As we wrap up 2025, I have compiled a list of the best OSINT and CTF Advent calendar challenges that are sure to put your skills to the test this season! 🌟 Are you ready for a busy December? 👇 gralhix.com/2025/11/30/t...

Top 2025 OSINT and CTF Advent calendar challenges to keep you busy this December

It’s that time of the year again! An entire month dedicated to learning, exploring, and putting your OSINT skills to the test with daily challenges and Capture the Flag (CTF) events. Are you …

gralhix.com

The #30DayMapChallenge is an incredible project that runs every November. Participants create & share maps on 30 themes. A well crafted visualisation can transform a "boring" section into something that really sticks with the reader, so I'll be checking our this year's entries for inspiration!

ever feel this chronic itch for some OSINT challenge? well, i do. and i really didn't want to practice profiling people i know irl. here's a list of OSINT challenges brought to you by the awesome @gralhix.bsky.social. gralhix.com/list-of-osin... have fun sharpening those skills 😋

List of OSINT Exercises – Challenge Yourself!

Looking to build your OSINT skills or put them to the test? Try out my list of free OSINT challenges! What are the OSINT Exercises? These OSINT exercises, also called challenges, give you the chanc…

gralhix.com

🕵️ The solution to OSINT Exercise 032 is now live on Youtube! ⚠️ Warning: There's some cursing involved! ✅ Did you solve it? 🖥️ Check out the video walkthrough where I explain how to complete all tasks. 🌡️Level: Beginners: Medium ~ Hard; Experts: Easy ~ Medium. #osintchallenge youtu.be/WGw7xLKOqn8

OSINT Exercise 032 | Solution and full walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

OSINT Exercise 032 is now live! gralhix.com/osint-exerci... A video was recorded by an unknown traveller at an undisclosed airport. Despite the absolutely chaos of the footage (be warned!), it is possible to determine the exact date, time, an in which terminal the person was. I hope you enjoy ❤️

OSINT Exercise #032

Welcome to OSINT Exercise #032! Task briefing: Airports are global hubs where cultures, languages, and lives briefly intersect. Millions of people pass through them each day. On an undisclosed date…

gralhix.com

The @cen4infores.bsky.social is looking for a UK-based OSINT Investigator with Arabic and/or Farsi language skills. The closing date for this role is 9 July 2025, so there are only a few days left! If you wish to apply please follow the instructions on the website: apply.workable.com/centre-for-i...

"How to access geoblocked websites without a VPN" Content restrictions are a hassle, especially in open source investigations. VPNs are great, but not always an option. This blog post explores a simple workaround, with a couple of real world examples to try yourself 🔽 gralhix.com/2025/06/23/h...

How to access geoblocked websites without a VPN

Our ability to access online content depends on where we are based. Websites, platforms, organisations, and even entire countries may choose to restrict access to certain content based on geographi…

gralhix.com

🕵️ The final walkthrough in my Back in Time series for @bellingcat.com is out! The "Toolkit Tracing" OSINT challenge focuses on the skills needed to track down documents that have been deleted, moved, or updated. The video covers several techniques useful to these situations. youtu.be/c40_x-_nvS4

Bellingcat OSINT Challenge | Back in Time: Toolkit Tracing | Full solution and walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

🕵️Just uploaded a walkthrough for the 4th @bellingcat.com's Back in Time OSINT challenge: "Future Plans". I designed this one to show how staying organised helps tackle complex investigations with multiple pivot points. Hope it’s helpful! youtu.be/P6cN7QRaEA4

Bellingcat OSINT Challenge | Back in Time: Future Plans | Full solution and walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

🔍 Another chance to use #OSINTforGood: Europol has added new images to their #TraceAnObject page. Your skills could help identify key items in child sexual abuse cases. Every clue counts! www.europol.europa.eu/stopchildabuse

Stop Child Abuse – Trace an Object | Europol

The most innocent clues can sometimes help crack a case. The objects are all taken from the background of an image with sexually explicit material involving minors. For all images below, every other i...

europol.europa.eu

Europol@europol.europa.eu · last yr.

1/2 - 🔎 Can you identify any of these items? Even the smallest tip could help. ⚠️ Our #TraceAnObject website has new images taken from files depicting child sexual abuse. 💡 You can help us move these investigations forward by submitting an anonymous tip. Go to www.europol.europa.eu/stopchildabuse

Looking for a distraction? Try some of the great challenges @gralhix.bsky.social has on gralhix.com Loads of good #OSINT content there, go now.

Sofia Santos | OSINT Analysis & Exercises

Visit the post for more.

gralhix.com

New job: Tech Investigations Editor @lighthousereports.com. If you're into investigating Big Tech, AI accountability, and researching at the impact of tech on our lives, this could be the job for you. wrkbl.ink/6hIlpoY

Tech Investigations Editor - Lighthouse Reports

Lighthouse is an award-winning investigative newsroom working with some of the world’s leading media to deliver deeply reported, public interest investigations. We’ve co-published series and investiga...

apply.workable.com

The "Creating Community" @bellingcat.com OSINT challenge walkthrough is now live! I got to explore and talk about time zones, how systems interpret them, and why they matter in investigations. Such a fascinating topic 🤓 I hope the video is fun and educational ❤️ youtu.be/AlrwKfcne20

Bellingcat OSINT Challenge | Back in Time: Creating Community | Full solution and walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

🕵️ The solution to @bellingcat.com's OSINT Challenge "Training Time" is now live on Youtube! Whether you have solved the challenge or not, I invite you to give it a watch, indoor geolocations are always fun! youtu.be/jZ-rxhT5QYM

Bellingcat OSINT Challenge | Back in Time: Training Time | Full solution and walkthrough

YouTube video by Gralhix - Sofia Santos

youtu.be

“So many of us spend their days immersed in some of the darkest moments of humanity. We are regularly reminded that monsters do exist, and they walk among us. The toll of that realisation is not always visible, but it's nevertheless always felt” @gralhix.bsky.social www.linkedin.com/posts/sofia-...

Vicarious Trauma in OSINT: Essential Reads | Sofia Santos posted on the topic | LinkedIn

In OSINT, especially within the field of human rights investigations, we often highlight and celebrate what open source research can uncover. But those achievements often come at a (high) cost. As we ...

linkedin.com

🕵️ The solution to @bellingcat.com's OSINT Challenge "Fresh Faced" is now on Youtube! Whether you've already completed it or not, I invite you to give it a watch; there is always something new to learn. One of the possible methods relied solely on critical thinking 🤔 www.youtube.com/watch?v=RKsy...

Bellingcat OSINT Challenge | Back in Time: Fresh Faced | Full solution and walkthrough

YouTube video by Gralhix - Sofia Santos

youtube.com

Could AI outperform, or even replace, an experienced OSINT analyst in geolocation tasks? Tom Jarvis once again shows why he's regarded as one of the best in the field with this brilliant piece of analysis. Check it out: tompatrickjarvis.medium.com/gpt-geolocat...

GPT geolocation — Why it’s a teacher & not a usurper

In this article, I’d like to explore a rather impressive application of AI from a practical, observational perspective — geolocation using…

tompatrickjarvis.medium.com

This is starting in about 20 minutes! Tune into our Patreon page to watch me struggle and get sweaty with @gralhix.bsky.social's open source research challenges!

Bellingcat@bellingcat.com · last yr.

Join our Director for Research and Training @giancarlofiorella.bsky.social as he takes on the latest Bellingcat challenges live on Patreon. Can he solve all five within the hour? Open to all Patreon members we will be streaming at 5pm CEST/11am EDT, Wednesday May 14th on Patreon.com/Bellingcat

Join our Director for Research and Training @giancarlofiorella.bsky.social as he takes on the latest Bellingcat challenges live on Patreon. Can he solve all five within the hour? Open to all Patreon members we will be streaming at 5pm CEST/11am EDT, Wednesday May 14th on Patreon.com/Bellingcat

We’re back — the new open source challenges launch today! This month they were created by the one and only @gralhix.bsky.social, and take a deep dive into Bellingcat’s archives. Are you ready? Find the new challenges on Challenge.bellingcat.com

I have created five OSINT challenges! 🎉 The set, titled "Back in Time", focuses on @bellingcat.com's many contributions to the OSINT community over the past decade, and can be found on their new challenge platform. Go and check them out! 🔽 challenge.bellingcat.com