jiska
@naehrdine.bsky.social
ɿɘɘniϱnɘ ɘƨɿɘvɘɿ
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
Reposted by jiska
Here we go again with iCloud photo scanning. www.macrumors.com/2026/02/19/a...
Apple Sued by West Virginia for Allegedly Allowing CSAM Distribution Through iCloud
West Virginia's Attorney General JB McCuskey today announced a lawsuit against Apple, accusing the company of knowingly allowing iCloud to be used to distribute and store child sexual abuse material (...
www.macrumors.com
February 19, 2026 at 11:01 PM
Here we go again with iCloud photo scanning. www.macrumors.com/2026/02/19/a...
Reposted by jiska
Google's Pixel 10 supports Apple's AirDrop protocol. Curious about how they did this? Let's take a look!
youtu.be/qBsNoa0FOPw
youtu.be/qBsNoa0FOPw
[0x12] Reversing Shorts :: AirDrop on Android?!
YouTube video by jiska
youtu.be
February 14, 2026 at 2:57 PM
Google's Pixel 10 supports Apple's AirDrop protocol. Curious about how they did this? Let's take a look!
youtu.be/qBsNoa0FOPw
youtu.be/qBsNoa0FOPw
Google's Pixel 10 supports Apple's AirDrop protocol. Curious about how they did this? Let's take a look!
youtu.be/qBsNoa0FOPw
youtu.be/qBsNoa0FOPw
[0x12] Reversing Shorts :: AirDrop on Android?!
YouTube video by jiska
youtu.be
February 14, 2026 at 2:57 PM
Google's Pixel 10 supports Apple's AirDrop protocol. Curious about how they did this? Let's take a look!
youtu.be/qBsNoa0FOPw
youtu.be/qBsNoa0FOPw
Two students I supervised in today's iOS release notes 🎉🎉🎉
support.apple.com/en-us/126346
support.apple.com/en-us/126346
February 11, 2026 at 10:22 PM
Two students I supervised in today's iOS release notes 🎉🎉🎉
support.apple.com/en-us/126346
support.apple.com/en-us/126346
Reposted by jiska
The Cycle 2 deadline for the USENIX WOOT Conference is in ~ 3 weeks (March 3, 2026)!
WOOT continues to include both a Systematization of Knowledge (SoK) track and an Up-and-Coming track (industry-focused).
Details are available in the Call for Papers:
www.usenix.org/conference/w...
WOOT continues to include both a Systematization of Knowledge (SoK) track and an Up-and-Coming track (industry-focused).
Details are available in the Call for Papers:
www.usenix.org/conference/w...
WOOT '26 Call for Papers
The 20th USENIX WOOT Conference on Offensive Technologies (WOOT '26) will take place at the Baltimore Marriott Waterfront in Baltimore, MD, USA, on August 10–11, 2026. The USENIX WOOT Conference aims ...
www.usenix.org
February 9, 2026 at 10:26 PM
The Cycle 2 deadline for the USENIX WOOT Conference is in ~ 3 weeks (March 3, 2026)!
WOOT continues to include both a Systematization of Knowledge (SoK) track and an Up-and-Coming track (industry-focused).
Details are available in the Call for Papers:
www.usenix.org/conference/w...
WOOT continues to include both a Systematization of Knowledge (SoK) track and an Up-and-Coming track (industry-focused).
Details are available in the Call for Papers:
www.usenix.org/conference/w...
Reposted by jiska
In this video, I'm analyzing a really confusing dialog on macOS. Let's dig a bit deeper into what it should do and what it's actually doing. #reverseengineering
youtu.be/P7hYg2GpsTk
youtu.be/P7hYg2GpsTk
[0x11] Reversing Shorts :: macOS "Private" Window Picker
YouTube video by jiska
youtu.be
February 7, 2026 at 3:07 PM
In this video, I'm analyzing a really confusing dialog on macOS. Let's dig a bit deeper into what it should do and what it's actually doing. #reverseengineering
youtu.be/P7hYg2GpsTk
youtu.be/P7hYg2GpsTk
In this video, I'm analyzing a really confusing dialog on macOS. Let's dig a bit deeper into what it should do and what it's actually doing. #reverseengineering
youtu.be/P7hYg2GpsTk
youtu.be/P7hYg2GpsTk
[0x11] Reversing Shorts :: macOS "Private" Window Picker
YouTube video by jiska
youtu.be
February 7, 2026 at 3:07 PM
In this video, I'm analyzing a really confusing dialog on macOS. Let's dig a bit deeper into what it should do and what it's actually doing. #reverseengineering
youtu.be/P7hYg2GpsTk
youtu.be/P7hYg2GpsTk
Last weekend, Telekom changed their network name from "Telekom.de" to "Im besten Netz." 📶
Curious about how they did this? Will more ad campaigns follow? And what can you do to change it back?
More details in this video: youtu.be/-PchHdFhl5M
Curious about how they did this? Will more ad campaigns follow? And what can you do to change it back?
More details in this video: youtu.be/-PchHdFhl5M
YouTube
Share your videos with friends, family, and the world
youtu.be
January 31, 2026 at 12:41 PM
Last weekend, Telekom changed their network name from "Telekom.de" to "Im besten Netz." 📶
Curious about how they did this? Will more ad campaigns follow? And what can you do to change it back?
More details in this video: youtu.be/-PchHdFhl5M
Curious about how they did this? Will more ad campaigns follow? And what can you do to change it back?
More details in this video: youtu.be/-PchHdFhl5M
Reposted by jiska
The new AirTags 2 just arrived!
Time to take them apart 🧵
Time to take them apart 🧵
January 28, 2026 at 11:34 AM
The new AirTags 2 just arrived!
Time to take them apart 🧵
Time to take them apart 🧵
Reposted by jiska
Don't miss out on Jiska Classen's - @naehrdine.bsky.social - training on "Practical iOS Reverse Engineering" at #OffensiveCon26
Find more details here🔗https://buff.ly/psTxdyG
Find more details here🔗https://buff.ly/psTxdyG
January 20, 2026 at 6:45 PM
Don't miss out on Jiska Classen's - @naehrdine.bsky.social - training on "Practical iOS Reverse Engineering" at #OffensiveCon26
Find more details here🔗https://buff.ly/psTxdyG
Find more details here🔗https://buff.ly/psTxdyG
Reposted by jiska
I reverse engineered DexProtector, the security solution protecting applications like Revolut and other banking apps.
From custom ELF loaders to vtable hooking, here is an insight into how these protections work and their limitations.
www.romainthomas.fr/post/26-01-d...
From custom ELF loaders to vtable hooking, here is an insight into how these protections work and their limitations.
www.romainthomas.fr/post/26-01-d...
A Glimpse Into DexProtector | Romain Thomas
This blog post provides a high-level overview of DexProtector's security features and their limitations
www.romainthomas.fr
January 5, 2026 at 6:11 AM
I reverse engineered DexProtector, the security solution protecting applications like Revolut and other banking apps.
From custom ELF loaders to vtable hooking, here is an insight into how these protections work and their limitations.
www.romainthomas.fr/post/26-01-d...
From custom ELF loaders to vtable hooking, here is an insight into how these protections work and their limitations.
www.romainthomas.fr/post/26-01-d...
Want to know how Apple's Low Latency WiFi works?
Today, 3:40pm CET, Hall 1, #39c3.
More details: events.ccc.de/congress/202...
Stream: streaming.media.ccc.de/39c3/one
Today, 3:40pm CET, Hall 1, #39c3.
More details: events.ccc.de/congress/202...
Stream: streaming.media.ccc.de/39c3/one
[39c3] Cracking open what makes Apple's Low-Latency WiFi so fast
Apple's Continuity features make up a big part of their walled garden. From AirDrop and Handoff to AirPlay, they all connect macOS and iOS devices wirelessly. In recent years, security researchers hav...
events.ccc.de
December 28, 2025 at 10:45 AM
Want to know how Apple's Low Latency WiFi works?
Today, 3:40pm CET, Hall 1, #39c3.
More details: events.ccc.de/congress/202...
Stream: streaming.media.ccc.de/39c3/one
Today, 3:40pm CET, Hall 1, #39c3.
More details: events.ccc.de/congress/202...
Stream: streaming.media.ccc.de/39c3/one
Reposted by jiska
In 2026, Jiska Classen - @naehrdine.bsky.social - returns to OffensiveCon with a training on "Practical iOS Reverse Engineering". More details here🔗https://buff.ly/psTxdyG
🚀 Don't miss this chance to improve your skills—sign up now!
🚀 Don't miss this chance to improve your skills—sign up now!
December 17, 2025 at 1:48 PM
In 2026, Jiska Classen - @naehrdine.bsky.social - returns to OffensiveCon with a training on "Practical iOS Reverse Engineering". More details here🔗https://buff.ly/psTxdyG
🚀 Don't miss this chance to improve your skills—sign up now!
🚀 Don't miss this chance to improve your skills—sign up now!
WOOT deadline approaching 👀
December 9, 2025 at 9:06 AM
WOOT deadline approaching 👀
Reposted by jiska
December 3, 2025 at 1:22 AM
Using a Pixel with GrapheneOS that features Inactivity Reboot, MTE, and more? — You must be a drug dealer. 🚨
November 26, 2025 at 11:39 AM
Using a Pixel with GrapheneOS that features Inactivity Reboot, MTE, and more? — You must be a drug dealer. 🚨
Reposted by jiska
Researchers tried plugging every possible phone number into WhatsApp's web app. They found they could collect 3.5 billion users' phone numbers, plus photos for half and profile text for more than a third, the biggest personal data exposure ever by some measures. www.wired.com/story/a-simp...
A Simple WhatsApp Security Flaw Exposed 3.5 Billion Phone Numbers
By plugging tens of billions of phone numbers into WhatsApp’s contact discovery tool, researchers found “the most extensive exposure of phone numbers” ever—along with profile photos and more.
www.wired.com
November 18, 2025 at 2:04 PM
Researchers tried plugging every possible phone number into WhatsApp's web app. They found they could collect 3.5 billion users' phone numbers, plus photos for half and profile text for more than a third, the biggest personal data exposure ever by some measures. www.wired.com/story/a-simp...
Reposted by jiska
Binary Ninja 5.2, Io, is live and it's out of this world! binary.ninja/2025/11/13/b...
With some of our most requested features of all time including bitfield support, containers, hexagon, Ghidra import, and a huge upgrade to TTD capabilities, plus a ton more, make sure to check out the changelog!
With some of our most requested features of all time including bitfield support, containers, hexagon, Ghidra import, and a huge upgrade to TTD capabilities, plus a ton more, make sure to check out the changelog!
November 13, 2025 at 9:16 PM
Binary Ninja 5.2, Io, is live and it's out of this world! binary.ninja/2025/11/13/b...
With some of our most requested features of all time including bitfield support, containers, hexagon, Ghidra import, and a huge upgrade to TTD capabilities, plus a ton more, make sure to check out the changelog!
With some of our most requested features of all time including bitfield support, containers, hexagon, Ghidra import, and a huge upgrade to TTD capabilities, plus a ton more, make sure to check out the changelog!
Reposted by jiska
USENIX WOOT Conference 2026: two submission deadlines this year!
- Cycle 1: December 12, 2025 *only one month away* !
- Cycle 2: March 3, 2026
WOOT still has a SoK track and an "Up-and-coming track" (~Industry), CFP for details:
www.usenix.org/conference/w...
- Cycle 1: December 12, 2025 *only one month away* !
- Cycle 2: March 3, 2026
WOOT still has a SoK track and an "Up-and-coming track" (~Industry), CFP for details:
www.usenix.org/conference/w...
November 12, 2025 at 11:00 AM
USENIX WOOT Conference 2026: two submission deadlines this year!
- Cycle 1: December 12, 2025 *only one month away* !
- Cycle 2: March 3, 2026
WOOT still has a SoK track and an "Up-and-coming track" (~Industry), CFP for details:
www.usenix.org/conference/w...
- Cycle 1: December 12, 2025 *only one month away* !
- Cycle 2: March 3, 2026
WOOT still has a SoK track and an "Up-and-coming track" (~Industry), CFP for details:
www.usenix.org/conference/w...
Reposted by jiska
Dein erster Congress und pures Chaos? Die Chaospat:innen sind für dich da. Melde dich bis zum 25. November. Willkommen sind alle, die den #39c3 offener und vielfältiger machen wollen! events.ccc.de/2025/11/10/3...
Dein erster Congress? Die Chaospat:innen sind für dich auf dem 39C3 da!
Auch in diesem Jahr sind die Chaospat:innen wieder beim Chaos Communication Congress in Hamburg am Start! Interessierte Mentor:innen und Mentees können sich bis zum 25. November 2025 um 23:59 Uhr…
events.ccc.de
November 9, 2025 at 10:59 AM
Dein erster Congress und pures Chaos? Die Chaospat:innen sind für dich da. Melde dich bis zum 25. November. Willkommen sind alle, die den #39c3 offener und vielfältiger machen wollen! events.ccc.de/2025/11/10/3...
Reposted by jiska
I just published the slides of my #OBTS v8.0 talk about Apple's #C1 baseband. Our C1 #binja loader is now available on GitHub, and you can find a recording on YouTube.
lukasarnold.de/posts/obtsv8...
lukasarnold.de/posts/obtsv8...
OBTS v8.0: Diving into C1
Learn more about my talk “What’s at the Bottom of the Sea, One Baseband? - Diving into the C1” at eight edition of the Objective by the Sea conference.
lukasarnold.de
October 27, 2025 at 3:48 PM
I just published the slides of my #OBTS v8.0 talk about Apple's #C1 baseband. Our C1 #binja loader is now available on GitHub, and you can find a recording on YouTube.
lukasarnold.de/posts/obtsv8...
lukasarnold.de/posts/obtsv8...
Reposted by jiska
Wir freuen uns, den Vorverkauf für den #39c3 anzukündigen. Im Anschluss an die Voucherphase gibt es zwei offene Verkaufstermine. (Fast) alle Engel erhalten heute eine E-Mail mit Voucher events.ccc.de/2025/10/16/3...
39C3 Presale: Modus Operandi
Wir freuen uns, euch den Vorverkauf für den diesjährigen Chaos Communication Congress anzukündigen. Der Vorverkauf wird dieses Jahr ziemlich genau ablaufen wie letztes Jahr: Der Vorverkauf wird…
events.ccc.de
October 16, 2025 at 9:57 PM
Wir freuen uns, den Vorverkauf für den #39c3 anzukündigen. Im Anschluss an die Voucherphase gibt es zwei offene Verkaufstermine. (Fast) alle Engel erhalten heute eine E-Mail mit Voucher events.ccc.de/2025/10/16/3...
Reposted by jiska
On a Saturday night I stumbled across something on the internet that made me feel like ****** my pants. A giant dataset of real surveillance operations targeting 1000s of people across nearly every country. Unraveling it and the mysterious company behind it has consumed 1.5 years of my life
October 14, 2025 at 4:49 PM
On a Saturday night I stumbled across something on the internet that made me feel like ****** my pants. A giant dataset of real surveillance operations targeting 1000s of people across nearly every country. Unraveling it and the mysterious company behind it has consumed 1.5 years of my life
Want to know more details on Apple's SPTM, TXM, and Exclaves? Read more on this in the paper based on Moritz Steffin's thesis. Lots of low-level details including their security implications are covered.
arxiv.org/abs/2510.09272
arxiv.org/abs/2510.09272
Modern iOS Security Features -- A Deep Dive into SPTM, TXM, and Exclaves
The XNU kernel is the basis of Apple's operating systems. Although labeled as a hybrid kernel, it is found to generally operate in a monolithic manner by defining a single privileged trust zone in whi...
arxiv.org
October 13, 2025 at 4:54 PM
Want to know more details on Apple's SPTM, TXM, and Exclaves? Read more on this in the paper based on Moritz Steffin's thesis. Lots of low-level details including their security implications are covered.
arxiv.org/abs/2510.09272
arxiv.org/abs/2510.09272
Reposted by jiska
Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress and please submit! The deadline for all submissions for the stages is October 24. #39C3 will take place from December 27 to 30 www.ccc.de/en/updates/2...
CCC | Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress!
Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen für Informationsfreiheit und Technikfolgenabschätzung.
www.ccc.de
September 27, 2025 at 11:14 PM
Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress and please submit! The deadline for all submissions for the stages is October 24. #39C3 will take place from December 27 to 30 www.ccc.de/en/updates/2...
