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Hannes Weissteiner

@hannesweissteiner.com
29 followers 27 following 10 posts

PhD Candidate at @isec-tugraz.bsky.social. Playing CTF with LosFuzzys

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ISEC TU GRAZ @isec-tugraz.bsky.social · 19/08/2026
The registration for our summer school is closing soon. Don't miss out on all the cybersecurity shenanigans! Registration Deadline: 23. August 2026 www.securityweek.at #gsw26​ #summerschool​ #cybersecurity​
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Sudheendra Raghav Neela @snee.la · 27/07/2026
I'm happy to announce our work has been accepted at ESORICS 2026: "A Systematic Look at Quality-of-Service Feature Effects on Side Channels in AMD SEV-SNP" Thanks to Carina Fiedler, @rayiizzz.bsky.social, @supersingular.bsky.social, @misc0110.bsky.social, and @gruss.cc for a fun collaboration!
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ISEC TU GRAZ @isec-tugraz.bsky.social · 08/07/2026
Greetings from DIMVA'26! 😎☀️ Last week, our researchers @rolicz.bsky.social, Stefan Gast, @hannesweissteiner.com and master student Tobias Weiser travelled to Chania, Greece. They attended the @dimvaconf.bsky.social and presented their papers:
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ISEC TU GRAZ @isec-tugraz.bsky.social · 29/05/2026
Check out this article about ❄️ "FROST: Fingerprinting Remotely using OPFS-based SSD Timing", a paper by our PhD student @hannesweissteiner.com ❄️The article: arstechnica.com/security/202... ❄️The paper: hannesweissteiner.com/pdfs/frost.pdf
arstechnica.com
Websites have a new way to spy on visitors: Analyzing their SSD activity
Telltale SSD activity can be measured in the browser using simple JavaScript.
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Hannes Weissteiner @hannesweissteiner.com · 20/05/2026
Announcing my latest first-author paper, accepted to #DIMVA2026: ❄️ FROST: Fingerprinting Remotely using OPFS-based SSD Timing.
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ISEC TU GRAZ @isec-tugraz.bsky.social · 27/02/2026
Our PhD students, Carina Fiedler, @snee.la and @hannesweissteiner.com attended the NDSS Symposium 2026 in San Diego, California, this week to present their papers! Check them out in the thread 👇
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Hannes Weissteiner @hannesweissteiner.com · 22/02/2026
I'm looking forward to presenting my paper, "Continuous User Behavior Monitoring using DNS Cache Timing Attacks" at NDSS next week! We mount an Evict+Reload-style attack on the local DNS cache, detecting recently accessed domains and evicting to continuously monitor new accesses.
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Sudheendra Raghav Neela @snee.la · 16/01/2026
I'm excited to announce that my first first-author paper is accepted at NDSS 2026 🥳. Eviction Notice: Reviving and Advancing Page Cache Attacks Check it out at: snee.la/posts/evicti... @snee.la, @notimaginary.bsky.social, Lukas Maar, @gruss.cc from @isec-tugraz.bsky.social, @tugraz.bsky.social
snee.la
Eviction Notice: Reviving and Advancing Page Cache Attacks
Foreword This blog post is a summarized and introductory write up of our paper recently accepted at NDSS 2026, “Eviction Notice: Reviving and Advancing Page Cache Attacks”. Read the full paper here. A...
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Reposted by Hannes Weissteiner
ISEC TU GRAZ @isec-tugraz.bsky.social · 16/12/2025
Join us tomorrow for the InfoSec + SSD Christmas special, featuring real-world exploits, live hacking of various targets, information leaks, file formats, and a review of the year in security. 📅 December 17th, 2025 | 17:30 📍 Lecture Hall HS i13, Inffeldgasse 16b
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KuK Hof­hackerei @hofhackerei.at · 12/08/2025
We got 9th place at @defcon.bsky.social #CTF! Props to all finalists for an intense fight over the past three days and congrats to MMM for taking the win. Thanks to Nautilus Institute for the neat setup this year, we had a blast. Until next time, Vegas! #DEFCON #DEFCON33
Team pictureFinal scoreboardTeam dashboard
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Hannes Weissteiner @hannesweissteiner.com · 13/06/2025
I am happy to announce that my first paper has been accepted at USENIX Security! We propose TEEcorrelate, a mitigation that statistically decorrelates reported performance counters from real ones during TEE execution.
hannesweissteiner.xyz
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Lukas Giner @giner.cc · 03/04/2025
I'm very happy to announce our new Cohere+Reload: Re-enabling High-Resolution Cache Attacks on AMD SEV-SNP was accepted at DIMVA 2025! In it @snee.la, @gruss.cc and I investigate AMD's ciphertext coherence mechanism and show even low resolution leakage can go a long way. Paper preview: cr.giner.cc
cr.giner.cc
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