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jiska

@naehrdine.bsky.social

581 Following1.5k Followers

ɿɘɘniϱnɘ ɘƨɿɘvɘɿ

🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training

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@naehrdine.bsky.socialAug 29, 2026, 2:29 PMReposted by @naehrdine.bsky.social

My hands-on iOS reverse engineering training that covers user space, kernel space, and firmware internals will be at #OBTS on Hawaii in November!

Register here: reversing.training/obtsv9/

@lorenzofb.bsky.socialOct 1, 2026, 2:12 PMReposted by @naehrdine.bsky.social

NEW: An iPhone hacking company claims it can freeze the iPhone in a state that makes it easier for cops to access data.

The iPhone has an automatic reboot feature that reverts the device to a state where data is harder to extract. This would defeat that feature.

www.404media.co/cops-can-byp...

404media.coCops Can Bypass iPhone’s Automatic Reboot to Get Into Locked Phones, Leaked Video ClaimsMagent Forensics, the owner of the GrayKey phone unlocking tool, says it can bypass an iPhone rebooting feature that was locking cops out.
3
@naehrdine.bsky.socialSep 17, 2026, 9:20 AM

Are you a PostDoc and want to stay in academia? We just opened 10 tenure track professor positions. HPI is close to Berlin, with the campus located next to a beautiful lake. We have excellent students and friendly colleagues.

faculty-search.hpi.de/jobposting/8...

@naehrdine.bsky.socialSep 16, 2026, 9:19 PM

I'm not sure how much that depends only on Apple any more (security.apple.com/blog/expandi...). If it's through a change in the PCC firmware it should show up in the transparency logs. But if it's through hardware, which Apple no longer owns, there are further parties that could be asked.

@naehrdine.bsky.socialSep 16, 2026, 7:52 PM

With Siri Recap, Apple sends everything people say to Private Cloud Compute. Apple Reference Image extends this and also sends your photos to PCC.

security.apple.com/blog/apple-r...

@naehrdine.bsky.socialSep 13, 2026, 3:41 PM

Henri Jäger-Menn made huge progress in reverse engineering and reimplementing Apple's proprietary Low-Latency WiFi on Linux. The #mrmcd26 recording is already online: talks.mrmcd.net/2026/talk/3R...

@naehrdine.bsky.socialSep 10, 2026, 5:28 PM

With this sensitive data being recorded across many devices, it'll be only a matter of time until governments request Apple to turn of end-to-end encryption of Siri Recap in iCloud.

@naehrdine.bsky.socialSep 10, 2026, 5:28 PM

Siri Recap privacy features will prevent that a restroom visit 💩 will be transcribed. The information it won't strip are who one interacted with and which decisions were made. While the former might be embarrassing, the latter is why at-risk users get hacked.

@naehrdine.bsky.socialSep 10, 2026, 5:28 PM

TL;DR: "security" and "privacy" mentioned a lot of times, and it seems like local processing at first sight. However, towards the end of the processing chain, the data is sent to third parties (via PCC, which is no longer running on Apple's hardware) and synced across all of your devices.

@naehrdine.bsky.socialSep 10, 2026, 5:28 PM

Apple shared details on how Siri Recap works, a new feature where your Apple Watch can listen to your surroundings 24/7 and take notes.

Source: www.apple.com/privacy/docs...

Your data’s journey for Siri Recap
􀀺 Audio stream during speech detection
Where it’s processed: S11 Always On Processor
Accessible to: No one. Raw audio is processed on-device and discarded in real
time.
􀄩
􀀼 Buffered audio on Apple Watch
Where it’s processed: Secure Exclave on Apple Watch
Accessible to: No one. Raw audio is isolated in secure compartment.
􀄩
􀀾 Buffered audio on iPhone
Where it’s processed: Secure Exclave on iPhone, after being transmitted
encrypted from Apple Watch
Accessible to: No one. Raw audio is isolated in secure compartment.
􀄩
Siri Recap can be turned on and off at
anytime right from Control Center.
􀁀 Condensed text on iPhone
Where it’s processed: Condensed text is encrypted and transferred from
Secure Exclave on iPhone to Private Cloud Compute. If you have optionally
enabled your Apple Intelligence Report in Privacy & Security Settings on your
iPhone, you can verify the Private Cloud Compute request in that report and only
on your device. Depending on your settings, it can be visible to you for 15
minutes or 7 days.
Accessible to: Only you. Your optional Apple Intelligence Report on your device
is only accessible to you after you first authenticate to view it.
􀄩
􀁂 Condensed text on Private Cloud Compute
Where it’s processed: Condensed text is decrypted on Private Cloud Compute
once it is received, where it is processed (subject to daily usage limits).
Accessible to: No one. Condensed text in Private Cloud Compute cannot be
accessed by anyone, not even Apple. Private Cloud Compute creates a
summarization from the condensed text and removes sensitive information. The
summarization is then encrypted and sent back to iPhone. The results are
immediately deleted from Private Cloud Compute.
􀄩
􀁄 Summarization
Where it’s processed: Siri app, and synced across your devices end-to-end
encrypted via iCloud.
Accessible to: Only you.
@zackwhittaker.comSep 9, 2026, 5:54 PMReposted by @naehrdine.bsky.social

Watching this Apple event tout how iPhones will soon be able to record ambient audio/conversations and transcribe "high level notes" for you. It's billed as private and end-to-end encrypted, but I think the bigger harm is the normalization of always-listening devices. It's creepy and not normal.

a screenshot from an iPhone and Apple Watch showing "recaps" of conversations from ambient audio.
HHypervisible @hypervisible.blacksky.appSep 9, 2026, 5:47 PM

Siri recap takes “high level notes” for you.

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@naehrdine.bsky.socialSep 5, 2026, 2:35 PM

Trainerinnen geben dort Workshops über Anwendungssicherheit allgemein, Bedrohungsanalysen, KI, bis hin zu einem Workshop von mir zur IoT-Firmwareanalyse.

Über den German OWASP Day kannst du dich kostenlos für die PreCon anmelden. Mehr Infos: god.owasp.de/2026

@naehrdine.bsky.socialSep 5, 2026, 2:35 PM

Du interessierst dich für Anwendungssicherheit und wohnst in Karlsruhe oder der Umgebung? Dann schau doch am 23. September beim OWASP Diversity PreCon Day vorbei, einem Angebot für Frauen und queere Menschen.

@naehrdine.bsky.socialSep 5, 2026, 2:33 PM

Did you know macOS binaries can run on iOS? It needs rewriting architecture information and adjusting library paths. I automated this, including DYLD shared cache library extraction and replacement, allowing many macOS command line tools to run on iOS.

github.com/mowisec/maco...

@naehrdine.bsky.socialAug 31, 2026, 8:52 AM

Google: "We shipped MTE hardware for 3 years and only academics enabled this optional feature to demonstrate practical attacks against it, so we decided to no longer ship it on the latest Pixels."

@naehrdine.bsky.socialAug 31, 2026, 8:52 AM

Apple: "We had to work on MTE stability and security improvements for 5 years, but we finally ship it with the iPhone 17 and enable it by default."

@naehrdine.bsky.socialAug 29, 2026, 2:29 PM

You're a full-time student and can't afford this but would love to attend? You can apply for a scholarship that covers your travel expenses, a training, and a conference ticket here: objectivebythesea.org/v9/attending...

@naehrdine.bsky.socialAug 29, 2026, 2:29 PM

My hands-on iOS reverse engineering training that covers user space, kernel space, and firmware internals will be at #OBTS on Hawaii in November!

Register here: reversing.training/obtsv9/

@tagesschau.bsky.socialAug 27, 2026, 6:18 AMReposted by @naehrdine.bsky.social

Mobilfunknetze übertrugen Handydaten an Anrufer #Mobilfunknetz #Datenschutz #Sicherheitslücke

@naehrdine.bsky.socialAug 22, 2026, 3:18 PM

Want to learn firmware reverse engineering on an IoT device? I'll be giving a free, women-only workshop with BlackHoodie at Hexacon in Paris on October 15. #reverseengineering

blackhoodie.re/Hexacon2026/

Debugging a Raspberry Pi Pico 2W with another Pico. Photo credit: Sandra Cava
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