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...
If you think you have the correct (full) answer please submit it on OSINT4Fun's page (linked above). Spoilers ruin the fun for everyone.
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...
6/6
Check out all the details of the top 2025 OSINT and CTF Advent calendar challenges which are sure to keep you busy this December:
gralhix.com/2025/11/30/t...
I wish you all a great end of the year 🌟
5/6
And finally, TryHackMe returns once again with Advent of Cyber 2025.
There will be multiple ways to test your cybersecurity skills with these beginner friendly challenges. With prizes worth over $150,000 are you sure you want to miss it?
🖥️ Find them on: tryhackme.com/adventofcybe...
4/6
The HEX ADVENT 2025 is a Christmas themed CTF fully designed by women!
Members of the Singapore’s female cybersecurity community & female co-workers from STAR Labs created these challenges for everyone! If you are eligible you may even win prizes.
🤶 Check it out on: hex-advent.starlabs.sg
3/6
I also heard from a good source that the @bellingcat.com 's open source December challenges won't be business as usual. Keep your eyes peeled and check out their Discord server or newsletter for tips and updates. I do love a good mystery.
🗓️ Check them out on: challenge.bellingcat.com
2/6
First on my list is @osint4fun.eu's Advent of OSINT 2025.
This project is not new to the game having already (successfully) created two previous editions of OSINT Advent calendars. This year they’re back for more!
🎄 Check them out on: www.osint4fun.eu/advent2025
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...
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 😋
🕵️ 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 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 ❤️
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...
That you! I'm a big Linux lover 🐧
My DE does indeed look like gnome at first glance because of the GTK theme, but it's not. I just tend to mixmatch a lot of things 😅
🕵️ 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
🕵️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
🔍 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
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.
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
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
🕵️ 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
“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-...
Thank you. Giancarlo was also brilliant at solving this challenge yesterday.
🕵️ 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...
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...
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!
