The first thing to consider when it comes to security is to minimize the attack surface. In light of that, I'd never have a computerized toothbrush to begin with.
Adding a connected computer to anything automatically introduces security problems, so it's unwise to do it unless there's a very, very strong reason to. And there is no strong reason to do it with things like this. Computerizing/networking things doesn't automatically make those things better. It can often make them worse.
The first thing to consider when it comes to security is to minimize the attack surface. In light of that, I'd never have a computerized toothbrush to begin with.
Adding a connected computer to anything automatically introduces security problems, so it's unwise to do it unless there's a very, very strong reason to. And there is no strong reason to do it with things like this. Computerizing/networking things doesn't automatically make those things better. It can often make them worse.