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Johanna Ullrich

Johanna Ullrich

is key researcher at SBA Research and leads the Networks and Critical Infrastructures Security Research Group.

Research Interests

Based on Johanna’s interdisciplinary background, her research focuses on security at the intersection of computer science and classical engineering. Recently, she worked on attacks against the power grid and aspects of network security, in particular measuring experiments and IPv6. Among others, she has proven that the IPv6 Privacy Extension as specified in RFC 4941 and implemented in major operating systems is vulnerable.


Johanna received a BSc in Electrical Engineering and Information Technology, an MSc in Automation Engineering, and an PhD sub auspiciis praesidentis in Computer Science being among the top students of Austria. In addition, she was awarded the Research Prize of the Dr. Maria Schaumayer Foundation and was nominated for the Hedy Lamarr Prize 2019 by the Austrian Research Promotion Agency (FFG). Johanna teaches graduate courses at University of Applied Sciences Wiener Neustadt, FH Technikum Wien as well as FH Campus Wien.