Experimental setup (IMAGE) Ruhr-University Bochum Caption The researchers looked for security gaps in the firmware and scrutinised the inner workings of the drones. Credit RUB, Marquard Usage Restrictions The image may only be used for reporting about research at Ruhr University 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.