I thought I'd read that 'they' cab still access your phone even when it's off.
Put it in a faraday cage like box?
My car knows where I am but it won't tell me.
“Put it in a faraday cage like box? “
I’ve read reports that powered-down smart phones can still be accessed remotely and their microphones and cameras can be activated without this being detectable.
There are a number of shielding pockets and cases on the market, unfortunately we don’t have any way to test them unless we have a buddy in the NSA.
Microwaves make really good faraday cages.