iOS exploits, (de)compilers, etc. — infosec.exchange/@jonpalmisc
Joined January 2019
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Pinned Tweet
31 Jul 2023
The slides from my @0x41con 2023 talk are now available: jonpalmisc.com/2023/07/31/ge…
They were primarily designed to supplement my speaking (and the PDF doesn't have animations), but you may still find them useful. Reach out if you have questions.
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jonpalmisc retweeted
May 2
Had a lot of fun reversing Coruna over the last couple weeks and decided it would be worth to write it all up before I forget - so enjoy :)
littlelailo.github.io/writeu…
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0x41con 7
Mad props to Anna and @qwertyoruiopz for hosting and organising this edition!
Kudos to all the speakers!
And thank you all for being part of it!
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Apr 26
Another great year of @0x41con, credit to @xerub and @qwertyoruiopz for keeping the tradition alive 🔥
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Mar 4
can anyone vouch for the brownie recipe in the Dyld shared cache?
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The OG is cooking for 2026. Stay tuned. 0x41con.org
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27 Nov 2025
For whoever might be interested, finally got some time to put together an iBoot & SecureROM loader for both Binary Ninja and IDA that maps segments (TEXT, CONST, DATA, BSS) correctly:
github.com/jonpalmisc/ibis
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27 Nov 2025
Still a WIP, but should be useful so far. Would also like to look into how microkernel iBoot works some more and see if there's any improvements that can be made there.
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7 Nov 2025
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@iBSparkes
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7 Nov 2025
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21 Oct 2025
Quick update to arm.jonpalmisc.com:
- Docs updated to 2025.09 revision
- Some visual improvements
- Maybe better search(?) (you tell me)
Should be strictly improvements, but lmk if anything seems to have regressed :)
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21 Oct 2025
Search continues to be a bit of a nightmare—one day I'll write a better library but for now I'll keep fighting Pagefind...
P.S. If anything seems wonky, try emptying your cache.
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jonpalmisc retweeted
2 Sep 2025
RE//verse 2026 CFP is open! Want to be apart of the lineup? Submit your talk: sessionize.com/reverse-2026
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jonpalmisc retweeted
16 Jul 2025
Just released a short writeup for the A9 version of the Trigon exploit, which involves getting code execution on a coprocessor before exploiting the kernel - enjoy! alfiecg.uk/2025/07/16/Trigon…
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16 Jul 2025
Two new arm.jonpalmisc.com updates:
- the search bar should now return better results thanks to better page indexing; and
- when it doesn’t, there are now “all instructions” and “all registers” pages you can CMD F manually.
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jonpalmisc retweeted
26 Jun 2025
I like em dashes, and I hate that some people now take them as evidence of text being AI generated.
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3 May 2025
Quick note: arm.jonpalmisc.com/ has been updated to the latest version of the Arm spec. Any changes should be strictly improvements, but let me know if something seems off.
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2 May 2025
Nothing else even comes close—thanks @xerub and @justandrijana for another incredibile edition of 0x41con! 😎
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