Welcome to the SysSec research group led by Prof. Dr. Christian Rossow (CISPA / TU Dortmund), located in Dortmund, Germany. We are an enthusiastic research team that explores systems, software and network security topics. In particular, we study (i) cyber attacks and countermeasures (e.g., amplification DDoS mitigation, attack attributions/tracebacks), (ii) network security (e.g., software/hardware co-designs for reliable traffic attribution, traffic analysis on encrypted network communication), and (iii) system/software security (e.g., compiler-assisted software security, software exploitation techniques, AI-assisted software (in)security). We love foundational research that can be transferred to practical applications and remediations.