Geoffrey @busdma

pwn for @0rganizers, security engineering, VR, HW security etc Belgium Joined June 2015

Tweets

149
Followers

337
Following

521
Likes

3K

Geoffrey @busdma

4 days ago

@vxunderground @madelinelawren @BlackHatEvents Very nice, let’s see Paul Allen’s card x.com/busdma/status/…

Geoffrey @busdma

4 months ago

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Geoffrey @busdma

3 weeks ago

@_can1357 Yeah true, I use it mostly to read and navigate 🙃

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RSA private keys biased toward 0 bits can be factored by swapping a hard math problem for an easy one: integer factorization becomes polynomial factorization. We found hundreds of real-world keys vulnerable to this. Many traced to a type mismatch in CompleteFTP (now patched): each 32-bit limb got only 8 bits of randomness. We recovered 603 RSA and 74 DSA private keys. blog.trailofbits.com/2026/06/12/fac…

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Geoffrey @busdma

2 months ago

@gr4yf0x Lmao, is this yours

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Geoffrey @busdma

4 months ago

Feross @feross

4 months ago

🚨 CRITICAL: Active supply chain attack on axios -- one of npm's most depended-on packages. The latest [email protected] now pulls in [email protected], a package that did not exist before today. This is a live compromise. This is textbook supply chain installer malware. axios

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DiscussingFilm @DiscussingFilm

6 months ago

Apple has landed the rights to turn ‘MISTBORN’ into a film franchise & ‘THE STORMLIGHT ARCHIVE’ into a TV series. Brandon Sanderson will write, produce and consult on all projects. (Source: hollywoodreporter.com/movies/movie-n…)

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Geoffrey @busdma

6 months ago

@galli_leo_ 👀

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Geoffrey @busdma

7 months ago

@bl4sty @iBSparkes github.com/mikaku/Fiwix/b… @0rganizers used this to solve it /cc @_MatteoRizzo but idk if intended

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Geoffrey @busdma

9 months ago

@__suto 😭

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xvonfers @xvonfers

a year ago

googleprojectzero.blogspot.com/2024/10/from-n… issuetracker.google.com/issues?q=compo…

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Geoffrey @busdma

a year ago

@l33d0hyun @Yakov5776 @HexRaysSA I was joking lmao 😆

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Geoffrey @busdma

a year ago

@l33d0hyun @Yakov5776 @HexRaysSA Need more proof, please show the license file

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Crusaders of Rust @cor_ctf

a year ago

🚨🚨🚨We just broke everyone’s favorite CTF PoW🚨🚨🚨 Our teammate managed to achieve a 20x SPEEDUP on kctf pow through AVX512 on Zen 5. Full details here: anemato.de/blog/kctf-vdf The Sloth VDF is dead😵 This is why kernelCTF no longer has PoW!

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Specter @SpecterDev

2 years ago

My @dayzerosec co-host zi and I are giving our 1st training @ hardwear.io with a focus on attacking security hypervisors! Trainings are something we've wanted to do for a while. Take a look and share to those who would be interested :) hardwear.io/usa-2025/train…

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hardwear.io @hardwear_io

2 years ago

💡 ARM TrustZone-based TEEs secure devices like smartphones; drones, but they have critical vulnerabilities Join @0ddc0de at #hw_ioUSA2025 to analyze system designs, spot security flaws & explore isolation and confidentiality techniques 👉 hardwear.io/usa-2025/train… #TrustZoneTEE

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Raspberry Pi @Raspberry_Pi

2 years ago

Security through transparency: all chips have vulnerabilities, and most vendors' strategy is not to talk about them. In contrast, we aim to find and fix them. Read the results of our RP2350 Hacking Challenge: rpltd.co/rp2350-challen…

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The Witcher @thewitcher

2 years ago

There are no gods here, only monsters ⚔️ We're thrilled to reveal the first look at #TheWitcherIV — our upcoming single-player open-world RPG. It marks the beginning of a new saga with Ciri as a protagonist, embarking on her own journey to become a professional monster slayer. Watch in 4K: thewitcher.ly/RevealTrailer

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Sebastian Kalemba @Skalemba

2 years ago

I'm thrilled to announce that Project Polaris has entered the full-scale production phase! With new challenges just around the corner, it’s the talented and hard-working people who make me believe we can together make the upcoming Witcher Saga a remarkable experience. No stopping now! Stay tuned for what’s on the other side of the coin!⚔️

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LakeCTF @LakeCtf

2 years ago

LakeCTF is back with a new edition! Join us on December 7th for a chance to qualify for the finals, or win tickets and accommodation for the @1ns0mn1h4ck 2025 conference in Lausanne (Switzerland) more info here 👉 lakectf.epfl.ch