Patrick Jattke
PostDoc, ETH Zurich
Research Interests:
DRAM security, side-channels, microarchitectural security.
Email:
Profiles:
I am a postdoctoral researcher at COMSEC (Computer Security Group) at ETH Zurich, led by Prof. Kaveh Razavi. I have broad interests in many different facets of hardware security, especially DRAM, side channels, and microarchitectural security. Previously, I was a PhD student at COMSEC and I worked on new methodologies to evaluate the security of DRAM devices against Rowhammer and Rowhammer-like effects from the system level.
Before joining ETH Zürich, I studied IT Systems Engineering (M.Sc.) at the Hasso Plattner Institute Potsdam, where I gained lots of practical experience in software engineering, machine learning, as well as in the broad field of security. I concluded my studies in June 2020 by writing my Master’s thesis with Dr. Alexander Viand at ETH Zürich about making Fully Homomorphic Encryption easier accessible to non-experts.
Publications
Following a list of all my (co-)authored papers.
Phoenix: Rowhammer Attacks on DDR5 with Self-Correcting Synchronization. (IEEE S&P 2026)
Diego Meyer, Patrick Jattke, Michele Marazzi, Salman Qazi, Daniel Moghimi, Kaveh Razavi.
McSee: Evaluating Advanced Rowhammer Attacks and Defenses via Automated DRAM Traffic Analysis. (USENIX Sec. 2025). *CSAW 2025 finalist*
Patrick Jattke, Michele Marazzi, Flavien Solt, Max Wipfli, Stefan Gloor, Kaveh Razavi.
Posthammer: Pervasive Browser-based Rowhammer Attacks with Postponed Refresh Commands. (USENIX Sec. 2025).
Finn de Ridder, Patrick Jattke, Kaveh Razavi.
Rubicon: Precise Microarchitectural Attacks with Page-Granular Massaging (Euro S&P 2025).
Matej Bölcskei, Patrick Jattke, Johannes Wikner, Kaveh Razavi. *Distinguished paper award*
REFault: A Fault Injection Platform for Rowhammer Research on DDR5 Memory (μASC 2025).
Stefan Gloor, Patrick Jattke, Kaveh Razavi. *Best paper award*
ZenHammer: Rowhammer Attacks on AMD Zen-Based Platforms (USENIX Sec. 2024).
Patrick Jattke, Max Wipfli, Flavien Solt, Michele Marazzi, Matej Bölcskei, Kaveh Razavi.
Paper Page Video Slides: PDF Source Code
BLASTER: Characterizing the Blast Radius of Rowhammer (DRAMSec 2023, co-located with ISCA 2023).
Zhenrong Lang, Patrick Jattke, Michele Marazzi, Kaveh Razavi. *Award for best BSc thesis*
Paper Video Slides: PDF Source
REGA: Scalable Rowhammer Mitigation with Refresh-Generating Activations (IEEE S&P 2023).
Michele Marazzi, Flavien Solt, Patrick Jattke, Kubo Takashi, Kaveh Razavi. *Patent pending*
HECO: Fully Homomorphic Encryption Compiler (USENIX Sec. 2023)
Alexander Viand, Patrick Jattke, Miro Haller, Anwar Hithnawi.
BLACKSMITH: Scalable Rowhammering in the Frequency Domain (IEEE S&P 2022).
Patrick Jattke, Victor van der Veen, Pietro Frigo, Stijn Gunter, Kaveh Razavi.
Paper Page Video Slides: PDF Source Code
ProTRR: Principled yet Optimal In-DRAM Target Row Refresh (IEEE S&P 2022).
Michele Marazzi, Patrick Jattke, Flavien Solt, Kaveh Razavi. *ETH Spark Award Nomination, CSAW Europe finalist*
RemembERR: Leveraging Microprocessor Errata for Design Testing and Validation. (MICRO 2022).
Flavien Solt, Patrick Jattke, Kaveh Razavi.
SoK: Fully Homomorphic Encryption Compilers (IEEE S&P 2021)
Alexander Viand, Patrick Jattke, Anwar Hithnawi.
Curriculum Vitae
Professional Experience
Since 11/2025
Postdoctoral researcher in Hardware Security at COMSEC, Prof. Kaveh Razavi
ETH Zurich
Zurich, Switzerland
05/2023 – 08/2023
Intern in Qualcomm's Security Initiative (QPSI)
Qualcomm Inc.
San Diego, CA, USA
01/2018 – 09/2018
Student assistant in the Cognitive Assistance Systems group
DFKI
Berlin, Germany
08/2017 – 09/2017
Summer job in the dialysis-IT support dept.
Fresenius Medical Care
Bad Homburg v.d.H., Germany
12/2013 – 10/2016
Working student in IT security consulting
usd AG
Neu-Isenburg, Germany
04/2013 – 12/2013
Working student in the University Relations team
Software AG
Darmstadt, Germany
01/2012 – 04/2013
Junior IT Project Manager International
Fresenius Medical Care
Bad Homburg v.d.H., Germany
08/2009 – 01/2012
Apprenticeship as IT specialist for system integration
Fresenius SE
Bad Homburg v.d.H., Germany
Education
11/2020 – 10/2025
PhD student in Hardware Security at COMSEC, Prof. Kaveh Razavi
Dissertation: System-Level Evaluation of Advanced Rowhammer Attacks on Deployed Mitigations
ETH Zurich
Zurich, Switzerland
07/2020 – 10/2020
Scientific Assistant at DSG, Prof. Friedemann Mattern
ETH Zurich
Zurich, Switzerland
10/2019 – 06/2020
Visiting student, MSc. thesis at DSG, Prof. Friedemann Mattern
Thesis: Introducing Advanced Optimization Strategies to the Marble FHE Compiler
ETH Zurich
Zurich, Switzerland
04/2018 – 06/2020
IT Systems Engineering, MSc.
Focus: Security, Algorithms, Deep Learning
Hasso Plattner Institute
Potsdam, Germany
10/2017 – 03/2018
Computer Science
Focus: Machine Learning, Microcontroller Development
Free University
Berlin, Germany
04/2013 – 11/2016
Computer Science, BSc.
Thesis: A Toolkit for Synthetic Injection of Attacks Into Network Data
TU Darmstadt
Darmstadt, Germany
Scholarship & Awards
- 08/2025 USENIX Security '25 Student Travel Grant
- 06/2022 Qualcomm Innovation Fellowship Europe '22 ( Slides)
- 05/2022 IEEE S&P '22 Student Travel Grant
- 10/2019 Master Thesis Grant, Zeno Karl Schindler Foundation
- 10/2018 German National Scholarship, Volkswagen AG
- 10/2018 IT Scholarship with mentoring, msg systems AG
- 10/2015 Award for excellent results (top 7%) in Communication Networks I, TU Darmstadt
Invited Talks & Tutorials
11/2025
Invited Talk: "Breaking the Illusion of Security: Rowhammer is back on DDR5"
hardwear.io
Amsterdam, Netherlands
09/2022
Invited Talk: "Blacksmith: Scalable Rowhammering in the Frequency Domain"
Systems Group, ETH
Zurich, Switzerland
09/2022
Tutorial: "Triggering your first Rowhammer bitflip"
CHES '22
Leuven, Belgium
04/2022
Invited Talk: "Blacksmith: Scalable Rowhammering in the Frequency Domain"
ETH Cyber Group
Zurich, Switzerland
03/2022
Invited Talk: "Blacksmith: Scalable Rowhammering in the Frequency Domain"
Insomni'Hack '22
Geneve, Switzerland
11/2021
Tutorial: "Triggering your first Rowhammer bitflip"
NESSY at CARDIS '21
Lubeck, Germany
Teaching
I have been a teaching assistant responsible for the assignment part of our flagship Hardware Security course since the beginning of my PhD studies.
- Fall 2024 Hardware Security (MSc. course, 227-0579-00L), ETH Zurich
- Fall 2023 Hardware Security (MSc. course, 227-0579-00L), ETH Zurich
- Fall 2022 Hardware Security (MSc. course, 227-0579-00L), ETH Zurich
- Fall 2021 Hardware Security (MSc. course, 227-0579-00L), ETH Zurich
- Fall 2020 Hardware Security (MSc. course, 227-0579-00L), ETH Zurich
Community Service
I have served in the following top-tier conferences of my field:
- USENIX Security '25: Artifact Evaluator *Distinguished Reviewer Award*
Supervised Student Projects
During my PhD studies, I have regularly supervised projects and thesis for bachelor's and master's students.
02/2025 – 09/2025
Sevrin Mathys, MSc thesis
Exploring Rowhammer on DDR5
02/2025 – 09/2025
Mark Mitchell, BSc thesis
Reverse engineering of DDR4 rank-level ECC
12/2024 – 07/2025
Darijan Boskovic, MSc thesis
Embargo
09/2024 – 03/2025
Diego Meyer, MSc thesis
U-TRR on DDR5
12/2024 – 06/2024
Darijan Boskovic, semester project
Embargo
03/2024 – 10/2024
Haoxuan Xu, semester project
Reverse engineering of DDR4 rank-level ECC
09/2023 – 01/2024
Guillaume Premel, semester project
Memory controller reverse engineering
02/2023 – 06/2023
Stefan Gloor, BSc thesis
Designing a fault injection platform for DDR5 DRAM
02/2023 – 06/2023
Max Wipfli, BSc thesis *Award for best BSc thesis*
Hammering Zen: Rowhammer on current AMD platforms
09/2022 – 04/2023
Andrej Gorjan, MSc thesis
Mitigating THP-based attacks
09/2022 – 01/2023
Matej Bölcskei, semester project
Analyzing and mitigating vulnerabilities in the Linux memory management
03/2022 – 06/2022
Banu Cavlak, semester project
SmartHammer: Limiting the Search Space of Blacksmith via Automated Hints from U-TRR
10/2022 – 01/2023
Jonas Schmid, BSc project
Visualizing DRAM commands
09/2022 – 01/2023
Matej Bölcskei, semester project
Analyzing and mitigating vulnerabilities in the Linux memory management
02/2022 – 08/2022
Christian Hürlimann, BSc project
Blacksmith.js
02/2022 – 06/2022
Clément Thorens, semester project
Reverse engineering (dedicated) GPUs
02/2022 – 06/2022
Matej Bölcskei, BSc thesis
A Rowhammer kernel exploit
03/2021 – 09/2021
Diego Meyer, BSc thesis
A native hypervisor for the evaluation of transient execution attacks
03/2021 – 07/2021
Stijn Gunter, semester project
A FPGA-based Rowhammer testing platform
11/2020 – 05/2021
Moritz Schneider, BSc thesis
Building an OS from scratch