Facilitating trusted pairing of an implantable device and an external device

A non-transitory computer readable medium comprising computer executable instructions that, in response to execution, cause an implantable medical device including at least one processor to perform operations comprising:

• receiving a request from an external device to establish a telemetry link with the implantable medical device using a defined telemetry protocol;
• and
• based on the receiving the request, negotiating one or more encryption keys with the external device in accordance with the defined telemetry protocol, associating the one or more encryption keys and an identifier for the external device with first data in a memory which characterizes the external device as potentially authorized to establish the trusted telemetry communication relationship with the implantable medical device in accordance with the defined telemetry protocol, and determining whether the external device is associated with the first data in the memory of the implantable medical device that characterizes the external device as a trusted device, wherein association of the external device with the first data indicates the implantable medical device previously received validation information from the external device in association with a pairing procedure performed between the implantable medical device and the external device according to the defined telemetry protocol, restricting the establishment of the trusted telemetry communication relationship with the external device in accordance with the defined telemetry protocol based on reception of validation information from the external device, and wherein the validation information is supplementary to the defined telemetry protocol.