It's not a Samsung issue.
The problem is due to the FAT file system used on sd cards which has no security capabilities. This means any app can manipulate data on the sd card which does not belong to that app.
FAT is currently popular as many operating systems can read and write to it so you can take an SD card out if your camera and your computer will be able to read it.
The issue has been around since the 80's with the FAT file system, I guess Google took a stance to change this on their Android OS to secure you against malicious apps. An unpopular decision but the change is for your protection so its a good thing in my view. Hopefully FAT goes away and is replaced by a universal file system which is secure.
I'm not sure how Windows has fixed the issue or not...
Don't think apple allows sd anyway, they just empty your wallet for extra storage models, the chunts.
I believe app permissions will allow an app to write to an SD card if its installed on the sd card as it will 'own' its folder on the sd card, if the app is installed on the local storage its a no.