Paul Staat and Johannes Tobisch (IMAGE) Ruhr-University Bochum Caption Paul Staat (on the left) and Johannes Tobisch are doing their PhDs at RUB and conducting research at the Max Planck Institute for Security and Privacy in Bochum. Credit Michael Schwettmann Usage Restrictions The image may only be used for reporting about Ruhr-Universität Bochum. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.