A new smartphone app can wirelessly detect card skimmers installed by criminals on gas stations or bank ATMs. The Bluetana app takes just 3 seconds on average to detect a credit card skimmer. The app uses an algorithm to differentiate skimmers from other common Bluetooth devices, such as sensors, smartphones, or vehicle tracking hardware, that appear in Bluetooth scans at gas stations. Researchers say they were surprised that their app was able to detect so many skimmers that had not been discovered by regular manual inspections or other detection methods.
Source: https://thehackernews.com/2019/08/credit-card-skimmer-detector.html