Hello, I just found out that when you use staticwix url, even if you are not logged in and EVEN if you delete the file from your trash media you can still download the file. Here’s the download link. I already deleted that to my media files maybe it will take some time to removed it permanently.
https://static.wixstatic.com/ugd/35f018_d376a6497c4b40c08e0bbff0671ef154.pdf?dn=Test%20Doc%206.pdf
Is there a way to restrict our files further? Thank you in advance.
Good question. I’m checking with the Security specialist regarding this issue. I’ll let you know.
Thank you @yisrael-wix . Here’s also another link that anyone can download even if the collection was restricted to member site only.
https://static.wixstatic.com/ugd/35f018_28bc8f1069934a1188966fb140b82100.pdf?dn=Test%20Doc%201.pdf
I also read about on the forum about wix static url can be open to anyone. I hope wix can able to put security on it.
Still anyone with a link can download a file from MEMBERS ONLY Data Collection. 
can this be fixed?
(Supposed to be for MEMBERS Only file) Download link URL: https://docs.wixstatic.com/ugd/35f018_ef7dd6b678aa442dba63ed4243d0a65c.pdf?dn=securefile.pdf
Even file with download token , downloaded from official wix dashboard can also be downloaded without any restriction.