Sahar AbdelnabiView profile
Researcher
Sahar Abdelnabi is a Principal Investigator at the ELLIS Institute Tübingen and an independent research group leader at the Max-Planck Institute for Intelligent Systems and Tübingen AI Center. She leads the COMPASS (COoperative Machine intelligence for People-Aligned Safe Systems) research group, focusing on developing safe, aligned, and steerable AI agents with emphasis on security, human aspects, and cooperative multi-agent systems. Her research spans the intersection of AI with security, safety, and sociopolitical aspects: Understanding, probing, and evaluating the failure modes of AI models, their biases, emergent risks, and misuse scenarios Designing mitigations, system defenses, white-box control methods, and reasoning enhancements to counter such risks Leveraging AI agents for scientific discovery and advancing society Dr. Abdelnabi's research has identified critical vulnerabilities in AI systems, including being the first to identify, coin, and taxonomize the indirect prompt injection vulnerability in LLM-integrated applications (2023), and proposing watermarking for generative AI (2020). Her work has received significant recognition including a Best Paper Award at ACL2025 and AISec'23 workshop. Her scientific contributions have been widely recognized: Best Paper Award at ACL2025 for "A Theory of Response Sampling in LLMs" Best Paper Award at AISec'23 workshop for "Not what you've signed up for: Compromising Real-World LLM-Integrated Applications with Indirect Prompt Injection" Oral Paper presentation at ICCV 2021 Spotlight Paper at NeurIPS Datasets and Benchmarks 2024 Dr. Abdelnabi actively mentors students and researchers, hiring across all levels including interns, research visitors, PhD students, and postdocs. She has served on program committees for major AI and security conferences and has presented her work at numerous international venues. Her research has influenced policy and industry practices, with findings adopted by organizations including the German Federal Office for Information Security, NIST, and OWASP. The COMPASS research group provides a dynamic environment for exploring cutting-edge questions in AI safety and security, with opportunities for collaboration across institutions and disciplines.












