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2020 – today
- 2024
[j3]Jing Xu, Stefanos Koffas, Stjepan Picek:
Unveiling the Threat: Investigating Distributed and Centralized Backdoor Attacks in Federated Graph Neural Networks. DTRAP 5(2): 15:1-15:29 (2024)- [j2]Hanbo Cai
, Pengcheng Zhang, Hai Dong, Yan Xiao, Stefanos Koffas, Yiming Li:
Toward Stealthy Backdoor Attacks Against Speech Recognition via Elements of Sound. IEEE Trans. Inf. Forensics Secur. 19: 5852-5866 (2024) - [c10]Behrad Tajalli, Stefanos Koffas, Gorka Abad, Stjepan Picek:
ELMs Under Siege: A Study on Backdoor Attacks on Extreme Learning Machines. AISec@CCS 2024: 125-136 - [c9]Coen Schoof, Stefanos Koffas, Mauro Conti, Stjepan Picek:
EmoBack: Backdoor Attacks Against Speaker Identification Using Emotional Prosody. AISec@CCS 2024: 137-148 - [c8]Christina Kreza, Stefanos Koffas, Behrad Tajalli, Mauro Conti, Stjepan Picek:
Backdoors on Manifold Learning. WiseML@WiSec 2024: 1-7 - [c7]Coen Schoof, Stefanos Koffas, Mauro Conti, Stjepan Picek:
Beyond PhantomSponges: Enhancing Sponge Attack on Object Detection Models. WiseML@WiSec 2024: 14-19 - [i15]Jona te Lintelo, Stefanos Koffas, Stjepan Picek:
The SpongeNet Attack: Sponge Weight Poisoning of Deep Neural Networks. CoRR abs/2402.06357 (2024) - [i14]Marco Arazzi, Stefanos Koffas, Antonino Nocera, Stjepan Picek:
Let's Focus: Focused Backdoor Attack against Federated Transfer Learning. CoRR abs/2404.19420 (2024) - [i13]Simen Gaure, Stefanos Koffas, Stjepan Picek, Sondre Rønjom:
L2 · M = C2 Large Language Models as Covert Channels... a Systematic Analysis. CoRR abs/2405.15652 (2024) - [i12]Xiaoyun Xu, Zhuoran Liu, Stefanos Koffas, Shujian Yu, Stjepan Picek:
BAN: Detecting Backdoors Activated by Adversarial Neuron Noise. CoRR abs/2405.19928 (2024) - [i11]Coen Schoof, Stefanos Koffas, Mauro Conti, Stjepan Picek:
EmoBack: Backdoor Attacks Against Speaker Identification Using Emotional Prosody. CoRR abs/2408.01178 (2024) - 2023
- [j1]Arthur Mercier, Nikita Smolin, Oliver Sihlovec, Stefanos Koffas, Stjepan Picek:
Backdoor Pony: Evaluating backdoor attacks and defenses in different domains. SoftwareX 22: 101387 (2023) - [c6]Jing Xu, Stefanos Koffas, Oguzhan Ersoy, Stjepan Picek:
Watermarking Graph Neural Networks based on Backdoor Attacks. EuroS&P 2023: 1179-1197 - [c5]Stefanos Koffas, Luca Pajola, Stjepan Picek, Mauro Conti:
Going in Style: Audio Backdoors Through Stylistic Transformations. ICASSP 2023: 1-5 - [i10]Gorka Abad, Jing Xu, Stefanos Koffas, Behrad Tajalli, Stjepan Picek:
A Systematic Evaluation of Backdoor Trigger Characteristics in Image Classification. CoRR abs/2302.01740 (2023) - [i9]Hanbo Cai, Pengcheng Zhang, Hai Dong, Yan Xiao, Stefanos Koffas, Yiming Li:
Towards Stealthy Backdoor Attacks against Speech Recognition via Elements of Sound. CoRR abs/2307.08208 (2023) - [i8]Marco Arazzi, Mauro Conti, Stefanos Koffas, Marina Krcek, Antonino Nocera, Stjepan Picek, Jing Xu:
BlindSage: Label Inference Attacks against Node-level Vertical Federated Graph Neural Networks. CoRR abs/2308.02465 (2023) - [i7]Mauro Conti, Nicola Farronato, Stefanos Koffas, Luca Pajola, Stjepan Picek:
Invisible Threats: Backdoor Attack in OCR Systems. CoRR abs/2310.08259 (2023) - [i6]Stefanos Koffas, Praveen Kumar Vadnala:
On the Effect of Clock Frequency on Voltage and Electromagnetic Fault Injection. CoRR abs/2310.13389 (2023) - [i5]Bart Pleiter, Behrad Tajalli, Stefanos Koffas, Gorka Abad, Jing Xu, Martha A. Larson, Stjepan Picek:
Tabdoor: Backdoor Vulnerabilities in Transformer-based Neural Networks for Tabular Data. CoRR abs/2311.07550 (2023) - [i4]Matteo Gioele Collu, Tom Janssen-Groesbeek, Stefanos Koffas, Mauro Conti, Stjepan Picek:
Dr. Jekyll and Mr. Hyde: Two Faces of LLMs. CoRR abs/2312.03853 (2023) - 2022
- [c4]Stefanos Koffas, Praveen Kumar Vadnala:
On the Effect of Clock Frequency on Voltage and Electromagnetic Fault Injection. ACNS Workshops 2022: 127-145 - [c3]Jing Xu, Rui Wang, Stefanos Koffas, Kaitai Liang, Stjepan Picek:
More is Better (Mostly): On the Backdoor Attacks in Federated Graph Neural Networks. ACSAC 2022: 684-698 - [c2]Stefanos Koffas, Stjepan Picek, Mauro Conti:
Dynamic Backdoors with Global Average Pooling. AICAS 2022: 320-323 - [c1]Stefanos Koffas, Jing Xu, Mauro Conti, Stjepan Picek:
Can You Hear It?: Backdoor Attacks via Ultrasonic Triggers. WiseML@WiSec 2022: 57-62 - [i3]Stefanos Koffas, Stjepan Picek, Mauro Conti:
Dynamic Backdoors with Global Average Pooling. CoRR abs/2203.02079 (2022) - [i2]Stefanos Koffas, Luca Pajola, Stjepan Picek, Mauro Conti:
Going In Style: Audio Backdoors Through Stylistic Transformations. CoRR abs/2211.03117 (2022) - 2021
- [i1]Stefanos Koffas, Jing Xu, Mauro Conti, Stjepan Picek:
Can You Hear It? Backdoor Attacks via Ultrasonic Triggers. CoRR abs/2107.14569 (2021)
Coauthor Index
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