Several months ago I installed KIS for Android v188.8.131.5290 on my Sony Xperia Xa2.
I browse the internet using Opera v60.3.3004.55692 with Google as search engine.
I’ve scanned All Files with no problems being indicated.
KIS had not reported any problems until a couple of days ago when it raised the issue "Internet Protection does not support the default browser."
Apparently only KIS on Android, only supports Google Chrome.
As far as I can recall I have not changed any settings such Default Browser or Internet Protection, so
I'm surprised that this message has appeared only recently.