Skimmer and App in the Lab (IMAGE) University of California - San Diego Caption A researcher holds up a phone equipped with the Bluetana app with a skimmer in the background. The red characters on the screen are Bluetooth signatures from skimmers. The identifiers are blurred so that criminals would not be able to read them. Credit David Baillot/University of California San Diego Usage Restrictions Please credit David Baillot/University of California San Diego 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.