Medical Body Area Networks (MBAN) are created when Wireless Sensor Nodes are either embedded into the patient’s body or strapped onto it. MBANs are used to monitor the health of patients in real-time in their homes. Many cyber protection mechanisms exist for the infrastructure that interfaces with MBANs; however, not many effective cyber security mechanisms exist for MBANs. We introduce a low-overhead security mechanism for MBANs based on having nodes infer anomalous power dissipation in their neighbors to detect compromised nodes. Nodes will infer anomalous power dissipation in their neighbors by detecting a change in their packet send rate. After two consecutive violations, the node will “Tattle” on its neighbor to the gateway, which will alert the Telemedicine administrator and notify all other nodes to ignore the compromised node.

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