Krzysztof Okupski

Embedded security, reverse engineering and software exploitation

[Krzysztof Okupski @exminium]

Arrived in Berlin and ready for @offensive_con

I’ll see you all there! 😉

[offensivecon @offensive_con]

Our 2026 agenda is live!
🔗 https://t.co/obnIOwZQPl

[Anthropic @AnthropicAI]

You can read a detailed technical report on the software vulnerabilities and exploits discovered by Claude Mythos Preview here: https://t.co/AgU6ltV2qW

[Phrack Zine @phrack]

Player weaponized_autism (@droogie1xp) has won the Phrack CTF!

CTF is 2 binary exploitation challenges containing realistic vulns across 2 different targets. It began on Aug 7 and remained unsolved until now. So 1337 😎

Keep playing - all who finish will get a special prize!

[Tavis Ormandy @taviso]

You can now jailbreak your AMD CPU! 🔥We've just released a full microcode toolchain, with source code and tutorials. https://t.co/4NYerRuFo1

[Interrupt Labs @InterruptLabs]

📣 Exciting news for aspiring vulnerability researchers - a selection of our internal VR Development Program training resources are now available on GitHub!

Check them out at https://t.co/B53uulp9Th

These ones are on software development: programming in C and Python.

[thaddeus e. grugq @thegrugq]

Signal’s encryption is irrelevant to the discussion. The real problem with sharing Top Secret data over Signal is not the security of the app, it’s the security of the phone. And mobile phones are not secure against state level threat actors.

[Kuba Gretzky @mrgretzky]

Evilginx Pro phishing framework for red teams is launching in just 5 days! 😲

Here is a short demonstration of how easy it is to deploy a new phishing server, without ever leaving your terminal window.

Learn more about Evilginx Pro here: https://t.co/T9WorhakYa

[Krzysztof Okupski @exminium]

@amatcama @vigilant_labs Good luck on your next adventure!

[Krzysztof Okupski @exminium]

@chudyPB @watchtowrcyber Congratulations and good luck on your new adventure!

[n3k @kiqueNissim]

The AMD #Sinkclose exploit has been published for the #ekoparty presentation @exminium @IOActive @ekoparty => https://t.co/W1CVAfu5qX

[Ekoparty | Hacking everything @ekoparty]

"AMD Sinkclose: Universal Ring -2 Privilege Escalation" dictada por @kiqueNissim y @exminium I Sala E - MainTrack #EKO2024 🔥

[Hexacon @hexacon_fr]

Recordings of the #HEXACON2024 talks have been uploaded to our YouTube channel 🎬

https://t.co/JAquA5BJea

See you next year!

[droogie @droogie1xp]

New blog post: Tales from the Call-Gate: An SMM Supervisor Vulnerability
https://t.co/qFsxkXrwZC
@kiqueNissim

[Krzysztof Okupski @exminium]

Our talk on AMD Sinkclose got accepted at Ekoparty! I'll see you all there 🍺https://t.co/5xBSXtqTEd
@kiqueNissim #EKO2024

[Krzysztof Okupski @exminium]

@hexacon_fr Thank you for having us! We had a great time!

[Hexacon @hexacon_fr]

AMD Sinkclose: Universal Ring -2 Privilege Escalation by IOActive

#HEXACON2024

[Sergei Volokitin @hexpl0t]

Looking forward to presenting my research tomorrow @hexacon_fr !

[Krzysztof Okupski @exminium]

An awesome welcome from the Hexacon team! It's a pleasure to be back again 👍
@hexacon_fr

[Krzysztof Okupski @exminium]

@LolyRoP @kiqueNissim @IOActive The slides are available at https://t.co/UlPoLAdTEc