OSINT : How I find back owners when I found something

This time, the scene unfolds at Gare de Lyon, a bustling French station, where I stumbled upon a transportation card belonging to someone we’ll call Anna.


The card bore a picture, so I scanned the crowd, calling out “Anna” in hopes of catching her attention. Alas, no response.

Undeterred, I turned to the internet, searching for any trace of Anna. I found a LinkedIn profile that seemed to match. With common names, it’s not always straightforward, but my instincts told me I was on the right track. Armed with her current company’s name, I crafted emails to [email protected]/fr and [email protected]/fr. To my delight, it worked!

Within minutes, I received an Out of Office (OoO) reply containing a mobile phone number. I sent a text message, and to my surprise, it reached the rightful owner of the card.

Anna was initially taken aback by how I obtained her number but was grateful for my efforts to return her lost item. This story is just one of many in my ongoing quest to reunite lost items with their owners, a journey that began in 2020 when I found an iPhone in the forest.

Since then, I’ve honed my skills and achieved an impressive 80% success rate. I even created an Instagram account to document my adventures.

In the end, I believe in the power of kindness and the satisfaction of helping others. I would be grateful if someone did the same for me, so I pay it forward.

Little did I know, my hobby has a name: OSINT, or Open Source Intelligence. It involves using publicly available data to piece together information and create profiles. I’ve come to enjoy the challenge and the thrill of solving these mini-mysteries. Even if my friend Dimitri finds it a bit unsettling 😅, I find it incredibly rewarding. 

Car fix

Last weekend, my car started a new behaviour: running the ventilation at maximum, even with the engine off.. A few days before a long trip by car, it would have been a nightmare !

Internet was partially helpful, I was not the only one with that issue, but it was difficult to have a clear answer, so I played the safety card and took an appointment with a mechanic.

Unfortunately this mechanic cancelled the appointment, a few days later, without explanations. 🤬

Fortunately, I had a talk with a colleague, more mechanic than me, and after some minutes he convinced that the fix was achievable, even by me ! Challenge accepted ! I’m sure I can

I had to dismantle the full glove box, and many covering parts around, to reach this little guy.

Helped by: https://youtu.be/_ZamtgCttdE and https://youtu.be/vjNvuI9bUXs

The famous A43002900 !

This heater resistance (?) with a small electronic card was causing my ventilation to go mad!

Once a replacement was ordered, arrived in 2 days, and mounted, everything went back in order. 🙂

Moral: Don’t get discouraged, talk with people and just try. YouTube is full of really helpful video.