Medtronic MMT 508 MiniMed insulin pump, 522 / MMT - 722 Paradigm REAL-TIME, 523 / MMT - 723 Paradigm Revel, 523K / MMT - 723K Paradigm Revel, and 551 / MMT - 751 MiniMed 530G communications between the pump and wireless accessories are transmitted in cleartext. A sufficiently skilled attacker could capture these transmissions and extract sensitive information, such as device serial numbers.