Have you lost you device? pasby can only be used with the unique combination of your smartphone, your pasby-app, your pasby-passcode, and or your local device biometrics. So there's no need to panic right away if your smartphone goes missing or has been stolen.
However, for safety reasons, immediately deactivate the pasby-pass on that device using the self-help portal. To access the self-help portal you need to have re-activated a pasby on your new device.