Interface Deactivation for Communication Between Electronic Appliances

A near field communication system, comprising:

• a near field communication appliance, comprising:
• a plurality of secure elements;
• and
• an interposed element connected to the secure elements,
• wherein the near field communication appliance is operable to:
• receive a first communication, sent by an external appliance, which is intended for an application located in one of the secure elements;
• determine whether a first one of the secure elements contains the application;
• and
• deactivate an interface from the interposed element to the first secure element if the first secure element does not contain the application.

A method for controlling the flow of data in a near field communication appliance having an interposed element and a plurality of secure elements, the method comprising:

• receiving a first communication, sent by an external appliance, which is intended for an application located in one of the secure elements;
• determining which one of the secure elements contains the application;
• and
• ensuring that further communication takes place exclusively between the external appliance and the secure element which contains the application.