I have an iPhone 7 with IOS 12.4 and a MacBook Air (Mojave).
Just recently, my iPhone has started asking me to trust my MacBook EACH time I connect to it (eg, through the USB cable when charging), even though I have indicated that I trust it.
It didn't use to do this, so possibly it's due to a recent update on the MacBook or the iPhone.
I have tried resetting the Location & Privacy setting on the iPhone - that didn't help.
Does anyone have a solution? Thanks.