Described in example embodiments herein are techniques for implementing an automated banking machine such as an ATM. An example embodiments, tracks the flow of a note through an ATM. Another emobidment corrects errors detected during a note flow. Some embodiments are in the form of security protocols for communications or other communication protocols, or techniques for monitoring devices operating in the ATM. Yet another example embodiment is directed to security of a currency cassette. Still yet another embodiment is directed to detecting tampering of the ATM's gate and/or shuttle. Yet still another embodiment determines if notes in a shuttle were delivered.
