Regarding the security of medical devices, there is a great talk from Charles Parker II that he held at GrrCON 2017 where he highlights a lot of things going wrong in this industry. Definitely worth the time.

Another great talk from this conference is 3rd Party data burns held by Aaron 'Finux' Finnon. He talks about what you can learn if you link all kinds of dataleaks together. This talk sent a shiver down my spine.