Join Axelle Apvrille from Fortinet at VB2026 in Seville for a walkthrough of a real cyber incident that targeted an 89-year-old man in February 2026, revealing the full process used by the cybercriminals. 📅 Oct 15 | 09:30-10:00 | Red Room 👉 tinyurl.com/mrxpt752

How 100 hospitals switched to pen and paper to defeat a national cyber-attack. Here is our in-depth 10 minute YouTube documentary which we produced about the incredible response of Romanian cyber security teams and the unseen heroics of doctors and nurses in 2024. www.youtube.com/watch?v=WxY6...

Back from Capture The Evidence v2 organized by @eternalblue-off.bsky.social . It's an investigation-oriented CTF. All challenges and scenario are in French, but my blog is in English to motivate you to learn French and participate to the next edition ;P cryptax.github.io/posts/cte-v2/

Last Friday, I was at Auvergn'hack, a small single-tracked conference in the middle of France. A very friendly atmosphere, beautiful weather, great venue, and several very interesting talks. cryptax.github.io/posts/auverg... #landlock #opencode #auvergne #quantum #crypto #conference #CTF

Ce vendredi, atelier "reverse avec IA" à Auvergn'hack : www.auvergnhack.fr - Configurer OpenCode - Installer Ghidra + son serveur MCP - Créer un agent et des skills pour le reverse - Résoudre divers challenges CTF et CrackMe avec IA - Visual Studio Code + Cline - Rétro-ingénierie de Saint Nectaire

Can't make it to NorthSec conferences this year? We got you covered! Talks will be livestreamed on Youtube on starting Thursday morning at 9:00, Eastern Time. ⏯️ Youtube playlist: www.youtube.com/playlist?lis...

We're speaking at THCon, with Damien, on Wednesday this week. AI has really changed CTFd. Can we do something about it? Yes. We'll present a couple of ideas we experimented with - and hope it gives you tons of other ideas. #CTF #AI

If you want to learn to use #AI #agents and #skills, my new blog post might interest you. It's about the setup I used to play @1ns0mn1h4ck.bsky.social CTF. Obviously, this is *not* the way to go to learn #CTF skills... cryptax.medium.com/agent-skills...

Inscription au CTE L’enfer numérique de la RGPACA 🚓 Inscrivez vous en suivant le lien suivant : 🔗 grist.numerique.gouv.fr/o/docs/forms... 🚨 Chaque équipier doit s’inscrire : vous recevrez un e-mail au plus tard 7 jours après votre inscription, pour vous signifier sa bonne prise en compte.

Ph0wn Mag #3 eZine is out! With writeups of FrangiPh0wn (teaser of Ph0wn) and Ph0wn CTF 2026 github.com/ph0wn/writeu...

What's particularly cool about Ph0wn CTF? 1. It's onsite. If you haven't ever been to an onsite CTF, you absolutely must. 2. It's dedicated to connected devices, so you get to interact with tons of equipment! 3. The challenges are really awesome, yes, yes. Register at ph0wn.org - March 13/14

Oh? Rust based keylogger?!

Ce mardi 3 mars 2026, une éclipse totale de Lune se produit. Une partie de la planète aura l’occasion de voir le satellite prendre une teinte rougeâtre, ce qui amène parfois à l’appeler « Lune de sang ». #PosterCarto de la #Lune ! :) 👇 le-cartographe.net/publications...

Can AI Agents detect some hidden Backdoors in Binaries? Experiments with Code injected in C/Rust Projects, then analyze of resulting Binary with AI Coding Agents + access to reverse engineering Tools (Ghidra, Radare2, and binutils) #ReverseEngineering #AI quesma.com/blog/introdu...

👁️🌌 La nébuleuse de l’Œil du Chat comme vous ne l’avez jamais vue ! Grâce à Hubble Space Telescope et Euclid, une nouvelle image spectaculaire révèle les derniers instants d’une étoile à 4 300 années-lumière. 👉 À lire ici : cnes.fr/actualites/i... #Cnes @esa.int @ec-euclid.bsky.social

Reminds me of ph0wn teaser !! #ctf

I spy a Phrack gnome in the latest FIRE #ansi pack! Thanks @nail7.bsky.social, it's so cool!

⏰Time to register to ph0wn CTF now! There are also a few remaining seats to the Embedded Rust workshop, where you'll implement the 🐍Snake game on Micro:Bit. Don't forget your pirate costume 🧙‍♀️for the Creative Contest, and your xploits for ph0wn2own! ph0wn.org

This piece of code (Arduino) is vulnerable. What's the best fix? Comment. Don't know, or want to discuss about it? Come to ph0wn in Sophia Antipolis on March 13-14: ph0wn.org (free, registration required).

Replay de Mardi dernier ⬇️ En vous souhaitant une belle journée 🌻 www.youtube.com/live/asGIbQg...

For ph0wn registration, we see that many of you are struggling to put several items in your cart and consequently create x different registrations. It's simple. In pretix, you need to click on "Add tickets for a different date". Then select an other "event" : CTF, social event, workshop. #ph0wn

Hoy ⚔️ Next Stream : FrangiPh0wn CTF - What, How, Who, WriteUps! 💣 👉 Mardi 17 Fevrier à 21h Ft. @Cryptax , Miaou, YoyoChaud 👉 Join Live www.twitch.tv/thelaluka 👉 Discord Events discord.com/events/11337...

Are you stuck on one of the first 2 challenges of #FrangiPh0wn? As the teaser ends in 2 days, we've released a few hints, and hope they will help you reach the next level ;) ctf.ph0wn.org #RF #OSINT #AI #retrogaming #ph0wn #CTF

📅 March 13-14, 2026 - Sophia Antipolis, France 🤠 Prepare your best outfit for Ph0wn CTF's side event: the "Creative Contest". Come dressed up as a pirate, and get a chance to win a Hydrabus 😃 👉️ Details: ph0wn.org/contest/ #CTF #ph0wn2026 #pirate #flagship #hydrabus #hacker Re-posts appreciated

All hands on keyboard, pen to paper - Elbsides 2026 Call for Paper is open!!! Make good on your New Year resolution to contribute to the infosec community and present on June 5th in Hamburg. www.elbsides.eu/2026/cfp/ #elbsides2026 #CFPisopen #startwriting #infosec

FrangiPh0wn, the Ultimate Galette for Hackers and ph0wn CTF teaser, is up until Feb 9. Head to ctf.ph0wn.org, and find the trinkets! Are you up to it? Only 15 participants flagged something up to now. Go for it! #CTF #teaser #RF #OSINT #ph0wn #frangiph0wn

Ph0wn #CTF Teaser Announced for January! We hope you get the right tools and skills for Xmas :D Get ready! We will announce #FrangiPh0wn in January. Keep an eye on ph0wn.org

Best talks, papers, CTF challenges, tools I encountered in the second half of 2025: cryptax.github.io/nomination-2... Congratulations to those who are listed, and kudos to others :) cc: @trufae.bsky.social @uybhys.bsky.social @nst021.bsky.social @synacktiv.com

Variants of 2025 of Symbiote and BPFDoor support IPv6, UDP communication with C2. Reverse engineering the samples with r2ai and r2mcp. www.fortinet.com/blog/threat-... #malware #Linux #BPF #r2ai #r2mcp

Pour mon atelier "Reverse engineering with r2ai" à @uybhys.bsky.social demain, si vous avez un laptop x86, téléchargez en avance l'image: docker pull cryptax/r2ai:2025.11 #radare2 #IA #r2ai #UYBHYS25 #docker #workshop

Ca va parler de Radare2, de Ghidra, de MCP et d'assembleur en tout genre. L'objectif est d'utiliser l'IA pour faciliter la rétro-ingénierie. L'IA ne fait pas tout (par exemple, elle ne fait pas les crêpes que je compte déguster sur place), mais elle aide ... si on sait l'utiliser. Venez !

#UYBHYS A l'occasion de #UYBHYS25, de 10h à 17h les vendredi 7 et samedi 8 novembre, @ratzillas.bsky.social animera, sur le parvis du #Quartz à #Brest, un atelier de démonstration de "Car Hacking", accessible à toutes et tous sans inscription. 🙂

#UYBHYS #UYBHYS25 #Brest Il reste encore des places pour quelques ateliers de vendredi et pour la journée de conférences de samedi. Billetterie : pretix.eu/cantine/UYBH...

On Thursday afternoon, I am thrilled to give my first r2ai & ghidraMCP workshop at BruCON. Pre-requisites: you are good to go if you already have reversed a binary (with whatever #disassembler, it doesn't matter) OR if you have basic skills and understanding in #assembly. #mcp #LLM #AI

Slides of my prez at Barb'hack: www.fortiguard.com/events/6189/... Understand what a recent sample of Linux/Trigona #ransomware does. Learn how to spot #AI errors (hallucinations, omissions etc), learn how to tweak context length, output token limits to get the best out of your model. #barbhack25

I had (several) interesting questions yesterday on r2ai. One of them was that, obviously the tool needed to be used by an experienced reverse engineer. I'd like to comment a bit further. I feel normal that such a tool cannot be used by total beginners. All jobs require some adequate training. 1/n

Barb'hack is over and it was a pleasure to attend: very nice folks, friendly organizers, excellent food, best rumps lol and a CTF with a videogame interface+ challenges on Minitel. I loved it! Kudos to the staff. #barbhack25

I've very happy to speak at Barb'hack on Saturday. barbhack.fr/2025/fr/conf... There will be 2 demos. One live. One recorded - simply because I don't have the guts to do it live ;P We reverse engineer Linux/Trigona and Linux/Shellcode with radare2 + AI + HI HI standards for Human Intelligence ;P

Overlays are often used in Android malware. They are actually a burden to other domains such as browser extensions. This research, by Marek Toth, shows how click jacking [on hidden overlays] can trick the end-user in sharing his/her entire password manager. marektoth.com/blog/dom-bas...

Last chance to share your research at VB2025. Whether you have fresh research, practical insights, or real-world case studies to share, now is your moment to step into the spotlight! 📅 24 Aug 2025 — only 5 days left 📍 Berlin. 24–26 Sept 2025 👉 tinyurl.com/3mccm8br

I've recently setup a LM Studio server, with several models including gpt-oss. I can use it from my disassembler, here to analyze a Linux/Trigona sample. Learn more about Trigona at Barb'hack on Aug 30 in Toulon. #AI #malware #reverse #assembly #context #lmstudio #GPT

I love this kind of analysis 😍 Well done! Exploiting the Thermomix. Hey @synacktiv.com can you cook me a chocolate cake? ;-) www.synacktiv.com/en/publicati...

My blog post on how AI is reshaping malware and malware analysis is out: www.fortinet.com/blog/threat-... Examples on Linux/Trigona, Linux/Prometei, Linux/Ladvix and Android/SpyLoan. Enjoy. #malware #r2ai #r2 #claude #delphi #trigona #rust #flutter

W32/SkyAI uses AI? So do I. cryptax.medium.com/w32-skyai-us... - Where the malware loads the AI prompt, what for, why it fails. - How to find the encryption key with AI - Extract & decrypt the embedded PE - How the malware checks if it's on a VM - R2ai tips when curl argument is too long

Le nouveau zine de @b0rk.jvns.ca : Les règles secrètes du terminal 👉 jvns.ca/blog/2025/06...

Vous connaissez les vidéos de @tixlegeek.bsky.social ? Avec cet adorable Tux animé ? Ben, ça me faisait trop envie. Alors j'ai fait pareil avec Pico le Croco ! J'ai repris les explications de @tixlegeek.bsky.social dans le Twitch @laluka.bsky.social EP 193, et j'ai codé pour Pico :)

Nicolas Rouvière, of Ph0wn and SHL, will show you how to use Qiling in practice, for dynamic binary emulation. Don't miss it: on-site at SHL (Vallauris), June 19 at 7pm. In 2024, Nicolas used Qiling to solve the Ph0wn CTF teaser. See how here: github.com/ph0wn/writeu... #qiling #CTF #binary

Hey, I'd like to share the best talks/papers/videos/tools/CTF challenges I encountered in 2025 H1. This is the official "Cryptax Award 2025 H1" (lol). Congrats! cryptax.github.io/nomination-2... cc: @elbsides.bsky.social @northsec.io @radareorg.bsky.social @bsideskrs.bsky.social

How many times will I have to say this? Antivirus is not stupid and does NOT rely on fixed hashes or whatever to detect malware. This is an outdated myth from prehistoric times. Malware "signatures" understand binary formats + assembly and can easily dynamically detect variants.

Keynotes are a difficult exercises (for me). I'll be closing the @elbsides.bsky.social conference tomorrow with a *Quizz* keynote on how AI is used by malware authors (attack) and malware analysts (defense). I even hope to have time for a short demo :) #AI #malware #keynote #elbsides