I've had 3 instances of what appears to be an empty file in my downloads section of my Safari browser called partner dms. A google search hasn't revealed much. What is it? I've simply deleted them as they could not be opened. One search said it's related to Microsoft outlook but I have no Microsoft products on my Mac. I first saw the file when I went to tomsguide.com
Thread here about Safari and dms https://forums.macrumors.com/threads/safari-erroneously-adding-dms-extension-to-downloads.2080108/
I'm not a mac user I'm afraid so I can only go on what internet searches turn up, but it seems that way.