If you live in the US that sounds like something the FDA should be notified about. It’s probably not legal to sell a hearing aid that can so easily be hijacked by another party, or if it is, it really shouldn’t be. Either way, FDA regulates hearing aids so they are the ones to complain to.
The problem is inherent to Bluetooth, The only way to make it not be like this would be to make things dramatically more difficult to connect to things over Bluetooth.
If you live in the US that sounds like something the FDA should be notified about. It’s probably not legal to sell a hearing aid that can so easily be hijacked by another party, or if it is, it really shouldn’t be. Either way, FDA regulates hearing aids so they are the ones to complain to.
The problem is inherent to Bluetooth, The only way to make it not be like this would be to make things dramatically more difficult to connect to things over Bluetooth.