App for Finding Vulnerability (IMAGE) Ruhr-University Bochum Caption Using this App, tech-savvy volunteers can help search for radio cells that still contain the security vulnerability. Credit RUB, Marquard Usage Restrictions This image may only be used for reporting about Ruhr-Universität Bochum in the context of the press release "Security gap allows eavesdropping on mobile phone calls", published in August 2020. License Licensed 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.