iPhone asks 'Trust This Computer' again (I am on macOS 10.14.6 and iOS 12.4)


I am certain that I have trusted my Mac before.
Without the latter trust, I can also access the phone in iTunes.


I have tried reset "Location and Privacy" on my phone. Then


When connecting the iPhone with iTunes running, it asks for the trust and I trust it. 
Reboot my Mac and the phone asks for another trust.


Is there some known malware mimics system behavior and steal data from an iPhone?

(I do have installed some pir*ted software recently. That's my fault.)
Personal Hotspot being &quot;on&quot; while connecting the USB (tethering) seems to be the issue. Turn it off, connect the cable and turn it back on if required.
If you just need to use the hotspot and not bother about syncing iPhone using iTunes/Finder, then enter passcode once, &amp; tap &quot;cancel&quot; or &quot;Don't Trust&quot; second time onwards and you will not face any problems.