MapKit saved cache information on iPhone

Hi,

We are facing security concern that we could find answer to it yet.

When we are using MapKit to present a mapView on our app, there is a cache folder that being created:

1. app_name/com.apple.metal/functions.data

2. app_name/com.apple.metal/libraries.data

The following files were written to disk with a NSFileProtectionKey value of NSFileProtectionNone. I'm not sure what those files are contains and if it's a user private data or so and we can't get the right answer to the scanners yet.

It would be great if you can provide us more information about this cache thing you are using.

Thanks in advance