An app designed by University of California San Diego scientists has been used to detect the signatures of Bluetooth credit card skimmers at petrol stations . In the study, a total of 44 law enforcement and state government volunteers were equipped with the Bluetana app over a period of one year. In one year , 44 law enforcement and state government volunteers have used Bluetana to track down 64 skimmers who used 1,185 petrol stations in six states . Most of the skimmers had escaped being detected for six months . Computer science PhD student Nishant Bhaskar said Bluetana eliminated the false positives of rival skimmer - detection apps , which sometimes pick up the GPS signals of innocent devices .
An app designed by University of California San Diego scientists has been used to detect the signatures of Bluetooth credit card skimmers at petrol stations . In one year , 44 law enforcement and state government volunteers have used Bluetana to track down 64 skimmers who used 1,185 petrol stations in six states . Most of the skimmers had escaped being detected for six months . Computer science PhD student Nishant Bhaskar said Bluetana eliminated the false positives of rival skimmer - detection apps , which sometimes pick up the GPS signals of innocent devices .