Advanced Skimming Detection (ASD) is an anti-skimming sensor installed in the card reader for the detection of skimming devices that might be placed in the card reader. When the sensor detects a skimming device, it places the terminal in an 'out of service' mode until the device is removed from the card reader, and sends a report with the terminal's status. The self-service terminal will go back to service mode once the device is removed, with the ASD sensor sending the new status report.
