CrySyS Lab

🔐🤝 ARDENTS: új BME-s kutatói szövetség indult a megbízható és biztonságos számítógépes rendszerekért! A CrySyS Lab és az ftsrg kezdeményezésére létrejött együttműködés a dependability és security közös erősítését célozza. 👉 ardents.bme.hu

@unibme.official/video/7574349693728181507" target="_blank" rel="nofollow noopener">tiktok.com/@unibme.offici…

🧬🔐 The SECURED project at BME just finished with active participation from CrySyS! It explored how synthetic data can enable secure, privacy-preserving use of health data for research — supporting innovation while protecting patients. 👉 bme.hu/hirek/251216/b…

📄 New paper out! A collaboration within the SECURED project between Barcelona and Budapest (Balázs Pejó) explores how privacy attacks can be leveraged to detect free riders in federated learning. 🔗 sciencedirect.com/science/articl…

🎉 Paper accepted! “On the Fragility of Contribution Evaluation in Federated Learning” has been accepted at SaTML. The work addresses a core problem in Balázs Pejó’s OTKA research and is a strong collaboration between TTK–VIK (BME). 🔗 arxiv.org/html/2509.1992…

New Q1 publication! 🛡️ ​T. Holczer's latest research is out in the International Journal of Critical Infrastructure Protection. A great collaboration between the HIT & VET departments. ​Free access for a limited time: 👉 doi.org/10.1016/j.ijci… ​#CyberSecurity #BME #CrySyS

“Bribers, Bribers on the Chain, Is Resisting All in Vain? Trustless Consensus Manipulation Through Bribing Contracts” — a joint work by ELTE & BME (Biczók & Pejó) has been accepted at the Financial Cryptography and Data Security (FC) conference.

CrySyS Lab's Gergely Biczok has been appointed to serve on the External Advisory Board of NORCICS, the SFI Norwegian Centre for Cybersecurity in Critical Sectors. The NORCICS consortium is coordinated by NTNU.

⚡️ CrySyS Lab on the international stage! Tamás Holczer gave a talk titled “Attacking the Protocols of Electric Power Systems” on November 6, 2025, at the Defence and Information Assurance Workshop hosted by the Defence Academy of the United Kingdom. 🇬🇧

🎉 Big congratulations to Gergely Ács for winning the NKFIH NKKP Advanced Grant for his project: Systematic Security Risk Assessment of AI-supported Critical Infrastructures 👏 A major recognition of his outstanding research on AI and cybersecurity! 🔗 nkfih.gov.hu/palyazoknak/nk…

Shuaishuai L, Gergely A & Gergely B: Interdependent Privacy in Smart Homes: Hunting for Bystanders in Privacy Policies — accepted at FPS 2025. With this paper, Liu has officially met the publication requirements for the PhD degree — congratulations!

📢 New publication! Shuaishuai Liu & Gergely Biczók: Modeling interdependent privacy threats – just accepted in the International Journal of Information Security (Springer). 🔗 Preprint available: arxiv.org/abs/2505.18386

Upcoming 9/22 [NNHH] Buttyán: Cybersec Challenges 9/23 [ITBN] Pék: Cyber Competitions 10/1 [HUNOG] Ács: Security of LLMs 10/3 [Hacktivity] Fuchs: TLSH Attacks & Nagy: Linux Rootkits 10/25 [DSL] Koltai: AI Threats & Pék/Sándor: Binary Exploitation 10/28 [WITSEC] Koltai: AI Threats

🚨 New paper alert! Ziyuan Huang, Gergely Biczók & Mingyan Liu: Incentivizing Secure Software Development: The Role of Voluntary Audit and Liability Waiver just accepted in ACM Transactions on Privacy and Security. 📄 doi.org/10.1145/3765287

🚀 We’re moving! CrySyS Lab is leaving Twitter (X) — follow us on BlueSky: crysyslab.bsky.social 💙 🚀 Költözünk! A CrySyS Lab elhagyja a Twittert (X) — kövess minket a BlueSky-on: crysyslab.bsky.social 💙

Magyar egyetemisták közösen vettek részt a NATO Locked Shields Partner Run 2025 gyakorlatán! 💻🔒 A BME-t a CrySyS Lab képviselte. A hazai cybertehetségek sikeresen tesztelték tudásukat a világ legnagyobb kiberbiztonsági gyakorlatának előkészítésében! hhk.uni-nke.hu/hirek/2025/04/…

Gergely Biczok delivered an invited lecture on interdependent privacy at the Université de Lausanne (UNIL) in the context of the CUSO Doctoral Program in Computer Science. He also initiated a research collaboration with his UNIL hosts, Prof. Huguenin and Prof. Humbert.

🔐 A CrySyS Lab ingyenes kiberbiztonsági képzéseket és tanácsadást nyújt a DigitalTech EDIH keretében! 📢 KKV-k és közszféra intézmények figyelem! Részletek: dtedih.bme.hu #CyberSecurity #FreeTraining #DigitalTechEDIH

Two preliminary manuscripts by our colleagues were featured in the Large Scale Data Analytics special issue of ERCIM News: - |Anomaly Detection in Telemonitoring Using Sensor Correlation" by Koltai&Acs&Gazdag - "Inferring Contributions in Privacy-Preserving FL" by Pejo et al.

The paper "IDPFilter: Mitigating interdependent privacy issues in third-party apps" by Shuaishuai Liu and Gergely Biczok has been accepted for publication in Elsevier Computers & Security (D1, IF 4.8). You can find the paper at doi.org/10.1016/j.cose…