Re: First security problem is using wireless for critical application
No, the first problem is using a gadget instead of an actual medical device. The Independent ran an article a couple of years ago that these monitors were mostly useless.
Honestly, the old nursery rhyme has it right: put your child in a rickety basket in the top of a tree during a wind storm, and if the kid survives that fall, you'll have no worries. If you want a gadget, add a Raspberry Pi to monitor wind speed, cradle movement, and precipitation.