The com.apple.MobileAsset.DeviceCheck
MobileAsset type is likely related to the DeviceCheck framework.
It is published in mesu for iOS (manifest) and tvOS (manifest).
However, since we started monitoring it on 16 June 2021Assets
array in the plist, which is likely invalid.
According to the Last-Modified HTTP header, it has been like this since 18 October 2017 .