All too often when attempting to secure software, there is a tendency to focus on external threats. This leaves the potential for internal threats to be either overlooked or deprioritised. This trust of internal systems and processes can lead to a false sense of security should anyone with the ability to gain access to the network, physical interfaces or maintenance software for a device attempt to breach the system. "In the case of an ATM machine, gaining access to the network used by the machine offers the potential for sensitive data access on many levels and should be a hardened environment. Hardening such an environment for an ATM deployed outside of a banking institution is particularly problematic as the safeguards present within a bank are often weaker. For this reason, those needing cash from an ATM should look to prioritise using ATMs within banks over those in retail or office settings.  Read Less