Bjoern Kerler's Avatar

Bjoern Kerler

@bkerler

viperbjk@twitter.com, bkerler@github.com TZ pwner, reverse engineer and cryptanalyst

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30.10.2023
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Latest posts by Bjoern Kerler @bkerler

Should release the new version the next week, just fighting with some health issues right now, but I'm still working on it

11.01.2026 17:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

"Carbonara" was a running gag to annoy mtk itself about an undisclosed bug within the security scene for a long time. Sadly most devices are now patched against it as well.

11.01.2026 15:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Up to 50% off Prusa Academy courses! πŸš€ Give a man a 3D print and he'll be happy for a day. Teach a man to 3D print (with Prusa Academy), and he'll be happy for the rest of his life.
www.prusa3d.com/category/pru...

11.09.2025 16:39 πŸ‘ 11 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Introducing our latest filament - Prusament Woodfill Pastel Brown! 🌳 It’s perfect for printing home decor items such as boxes, frames, holders, and statues. Thanks to its high wood content, you can sand, paint or stain it just like regular wood. πŸͺ“
www.prusa3d.com/product/prus...

08.08.2025 13:24 πŸ‘ 18 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Five things we learned from WhatsApp vs. NSO Group spyware lawsuit | TechCrunch The landmark trial between WhatsApp and NSO Group unearthed several new revelations. We recap some of them here.

We are reading the hundreds of pages of court docs and hearing transcripts to recap the biggest revelations.

Here they are:

techcrunch.com/2025/05/10/f...

12.05.2025 14:12 πŸ‘ 15 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1

πŸ“’ Excited to announce that the results on BaseBridge, our project on improving cellular baseband emulation, are going public this week. Dyon will present at IEEE S&P on Monday 3pm, while David and I will be on stage at @offensivecon.bsky.social on Saturday 11am with even more details! 1/6

11.05.2025 10:23 πŸ‘ 14 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1
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Prusa EasyPrint is now available to everyone. 🧑
Print models directly from your phone, tablet, or laptop – no installation required. Designed for simplicity, EasyPrint makes 3D printing accessible to everyone. 🌟
blog.prusa3d.com/prusa_easy_p...

12.05.2025 16:18 πŸ‘ 36 πŸ” 5 πŸ’¬ 3 πŸ“Œ 0

πŸ’― agree. Couldn't say anything better

12.05.2025 18:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Den Haag is a really lovely city ;)

11.05.2025 19:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Always make sure you have your own life and none that is enforced by others even if that means you have to switch jobs.

11.05.2025 11:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The worst part with pwning things is, you get easily distracted by easier alternative pwns that turn out to be worse than the previous one.

08.05.2025 22:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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AI vulnerability/bug founds and reports is a huge problem. Curl has banned the use of AI-generated submissions via HackerOne because none of it made any sense, and is a waste of resources and time. "If we could, we would charge them for this waste of our time" hackerone.com/reports/3125...

05.05.2025 08:27 πŸ‘ 148 πŸ” 47 πŸ’¬ 3 πŸ“Œ 2
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Happy May the 4th! ✨
We're celebrating the galaxy's favorite day the best way we know howβ€”3D printing Star Wars models!
Find tons of fan-made designs on Printables.com, and if you're feeling creative like our PrusaGuy, give them a proper paint job. 🦾

May the Force be with you! 🀩

04.05.2025 12:42 πŸ‘ 17 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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3Dprint.com took an in-depth look at our Prusa Core One, exploring its capabilities, performance, and features. ✨ They highlight its robust build, impressive print quality, and quiet operation, and praise it for maintaining our signature focus on user repairability and ease of use.

28.04.2025 09:34 πŸ‘ 18 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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We’re kicking off a brand-new YouTube series β€” Behind the Build! 🎬 We’re going behind the scenes of incredible maker projects - and we’re starting with Nate from the Internet and his 20:1 scale 3D printed Lego castle. Over 5,000 parts, 1000kg of filament, and a whole year of making!

24.04.2025 15:01 πŸ‘ 25 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

The scale people are abusing AI now is way beyond. Most people don't even understand what AI is and how it works and thus use the terminology in a really "fascinating" way, especially in schools.

18.04.2025 16:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Just write me a dm ;)

18.04.2025 16:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Roadmap of the SIMsalabim re-verse.io talk. It shows the backplane of a disassembled Pixel 6 phone together with a iconized SIM and a picture of an interposer. Five locations are marked: (0) SIM interface, (1) Baseband, (2) Attack Surface, (3) Vulnerabilities, (4) Interposer

Roadmap of the SIMsalabim re-verse.io talk. It shows the backplane of a disassembled Pixel 6 phone together with a iconized SIM and a picture of an interposer. Five locations are marked: (0) SIM interface, (1) Baseband, (2) Attack Surface, (3) Vulnerabilities, (4) Interposer

Really enjoyed speaking at the inaugural edition of @re-verse.io!

You can find Tomasz' and my slides on tricks with SIMs and interposers here: tinyurl.com/reverse25-si...

05.03.2025 17:41 πŸ‘ 24 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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New EasyPrint update is live! πŸŽ‰ Highlights include: 5Γ— faster 3MF loading, β€œ+” shortcut for duplicating objects, faster thumbnails & more reliable autosaves, added G-code file size to the download button… and more! ✨

06.03.2025 14:51 πŸ‘ 12 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Here's another set of great addons from our David Schwarz (aka @prusaguy.bsky.social) to customize your Prusa CORE One.🦾 If having the spool outside the printer doesn't suit your setup - we bring you the "Prusa Core One Internal Spool Holder".
www.printables.com/model/121611...

06.03.2025 16:39 πŸ‘ 15 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0

Trying to get back into doing some livestreams, it seems I need to polish my audio + video setup again. Also it seems OBS Studio also has changed quite a bit. Not yet decided about the content, but I guess it will be a mix of 3d print development/tuning, reverse engineering and forensics content. πŸ˜‰

09.01.2025 14:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Time to write a bot for checking website updates and auto-filling forms

07.01.2025 18:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

(please re-post for reach - thank you!)
Learned a cool new Linux trick? Know an interesting quirk in a network protocol? Or have something else to share?

Write a 1-page article for the #6 issue of Paged Out! :)
pagedout.institute?page=cfp.php

Soft deadline is Feb 1st.

07.01.2025 07:41 πŸ‘ 30 πŸ” 33 πŸ’¬ 0 πŸ“Œ 0
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Spende Wie ihr wisst, haben unsere Kollegin Naya und ihre zwei jΓΌngeren Schwestern dieses Jahr 2 schlimme SchicksalsschlΓ€ge getroffen. Wir haben das Spendenkonto erstellt, um sie bei den aufkommenden Kosten...

Normally I don't do this, but this is an exception 😳.
A 19y old female working for rescue service has lost both her parents (mother recently on xmas) and needs donations to care for her two sisters (12/14y) / fund the funeral.

Please retweet for range or donate !
www.paypal.com/pools/c/9aWs...

07.01.2025 12:47 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Thinking about making a livestream about trying to recover a fat32 filesystem from an old japanese phone to recover the games, using in-depth techniques like disassembly of BMR/Wearleveling and FAT32 structures. What do you guys think ?

31.12.2024 08:41 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Und da das eigene Land die straffΓ€lligen TΓ€ter selbst nicht mΓΆchte werden die TΓ€ter staatenlos und verweilen am Flughafen auf Lebenszeit, so tauchen sie dann in keiner Statistik mehr auf ? Hahahaha

31.12.2024 08:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Du hast vergessen:
- Seinen eigenen Namen kennen
- Einen Account haben (egal wo)
😁

31.12.2024 08:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The world has become so political and non-technical, it seems it is time to do something about it

29.12.2024 10:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
how to find a location using only the shadow
how to find a location using only the shadow YouTube video by RAINBOLT

Want to impress family or friends? Ask them for a photo featuring a shadow and follow the steps GeoGuessr pro @georainbolt.bsky.social does here. Using Bellingcat's Shadow Finder tool, you can narrow down the likely location the photo was taken in. youtu.be/pQIjDPFgdJA?...

26.12.2024 18:15 πŸ‘ 523 πŸ” 95 πŸ’¬ 21 πŸ“Œ 9