https://www.theregister.co.uk/2018/10/29/hacked_brain_implants/

A newly developed class of brain implants could also become hacking targets, researchers are warning.

Kaspersky Lab and the University of Oxford Functional Neurosurgery Group warn in a joint report that the brain stimulation devices used to treat disorders like Parkinson's and OCD carry with them security vulnerabilities that would potentially allow an attacker to manipulate the medical implants.