jiska

@naehrdine

ɿɘɘniϱnɘ ɘƨɿɘvɘɿ 🎦 📝 naehrdine.blogspot.com 🐥 twitter.com/naehrdine 🎓 hpi.de/classen 📱 reversing.training

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jiska@naehrdine· 14d

First day of #OFTW was a blast. Had fun giving a new workshop where we looked into the iOS permission ecosystem and reverse engineered an app. Looking forward to today's talks!

jiska@naehrdine· Feb 11

Two students I supervised in today's iOS release notes 🎉🎉🎉 support.apple.com/en-us/126346

Call History
Available for: iPhone 11 and later, iPad Pro
12.9-inch 3rd generation and later, iPad Pro
11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation and later
Impact: A user with Live Caller ID app extensions turned off could have identifying information leaked to the extensions
Description: A logic issue was addressed with improved checks.
CVE-2026-20638: Nils Hanff
(@nils1729@chaos.social) of Hasso Plattner
Institute

Wallet
We would like to acknowledge Aaron Schlitt (@aaron_sfn) of Hasso Plattner Institute, Cybersecurity - Mobile & Wireless, Jacob Prezant (prezant.us), Lorenzo Santina (@BigNerd95) and Marco Bartoli (@wsxarcher) for their assistance.

jiska@naehrdine· Dec 9

WOOT deadline approaching 👀

I LOVE DEADLINES
ESPECIALLY THE WHOOSHING SOUND
THEY MAKE AS THEY PASS BY

jiska@naehrdine· Nov 26

Using a Pixel with GrapheneOS that features Inactivity Reboot, MTE, and more? — You must be a drug dealer. 🚨

GrapheneOS im Visier der Strafverfolgung
Quelle der Bedenken scheinen Berichte mehrerer französischer Medien zu sein, darunter einer der Tageszeitung Le Parisien.
Darin wird GrapheneOS als "Geheimwaffe" bezeichnet, mit der Drogenhändler und andere Kriminelle ihre Daten vor der Polizei schützten.
Dass sich das Betriebssystem im Vergleich zum Standard-Android besonders schwer knacken lässt, hatte zuletzt eine geleakte Präsentationsfolie des Forensikdienstleisters
Cellebrite gezeigt.

jiska@naehrdine· Aug 1

My first day with a fancy new title 👩‍🏫🎉

jiska@naehrdine· Jul 11

The Apple Watch has a closed down ecosystem, only compatible with the iPhone. Nils reverse engineered its interfaces to open it up for Android! ✨ WatchWitch ✨ allows using your Apple Watch ⌚ on Android devices, interpreting your health data, answering messages on the Watch & more. (1/2)

The WatchWitch app in context, showing the Apple
Watch and the paired iPhone as well as the Android phone running the app.

jiska@naehrdine· Jun 9

Liquid glass :|

jiska@naehrdine· Apr 11

Messenger so secure it can't decrypt my own messages 🔒

jiska@naehrdine· Dec 30

What has been seen cannot be unseen 🥬 #38c3

jiska@naehrdine· Dec 16

Successfully completed the "gardening" stage of my cybersecurity career 🌱

Six Alocasia babies, with five of them having variegated leaves

jiska@naehrdine· Dec 6

It's great seeing students I've had the privilege to supervise deliver amazing talks at #OBTS - and for Lina it's even her first conference talk! Check out their recordings on YouTube: youtube.com/@objectiveseefoundation

jiska@naehrdine· Dec 3

First day of our iOS training at Objective by the Sea was a blast!

jiska@naehrdine· Dec 2

Just flew all the way to Hawaii – for this. 🤤

jiska@naehrdine· Nov 16

Post a pic YOU took (no description) to bring some zen to the timeline

jiska@naehrdine· Nov 15

See the latest iOS inactivity reboot in action! iOS 18 comes with improved anti-theft measures. Three days w/o unlock, the iPhone will reboot, preventing thieves from getting your data. (1/4)