Stefanos Koffas

PhD student, Cyber-security, Delft University of Technology

Joined

August 2022

Names

Stefanos Koffas (Preferred)

Emails

****@tudelft.nl (Confirmed)

,

****@hotmail.com (Confirmed)

Personal Links

Career & Education History

PhD student

Cyber-security, Delft University of Technology (tudelft.nl)

2021 – Present

Advisors, Relations & Conflicts

No relations added

Expertise

Backdoor Attacks in AI

2021 – Present

Publications

A Systematic Evaluation of Backdoor Trigger Characteristics in Image Classification
Gorka Abad, Jing Xu, Stefanos Koffas, Behrad Tajalli, Stjepan Picek
- Published: 01 Jan 2023, Last Modified: 12 May 2023
- CoRR 2023
- Readers: Everyone
Can You Hear It?: Backdoor Attacks via Ultrasonic Triggers
Stefanos Koffas, Jing Xu, Mauro Conti, Stjepan Picek
- Published: 01 Jan 2022, Last Modified: 12 May 2023
- WiseML@WiSec 2022
- Readers: Everyone
Dynamic Backdoors with Global Average Pooling
Stefanos Koffas, Stjepan Picek, Mauro Conti
- Published: 01 Jan 2022, Last Modified: 12 May 2023
- AICAS 2022
- Readers: Everyone
More is Better (Mostly): On the Backdoor Attacks in Federated Graph Neural Networks
Jing Xu, Rui Wang, Stefanos Koffas, Kaitai Liang, Stjepan Picek
- Published: 01 Jan 2022, Last Modified: 12 May 2023
- ACSAC 2022
- Readers: Everyone

Co-Authors