The SMBv1 protocol was the entry route for the recent ransomware attacks, and it comes as a surprise that Google is still developing an app based on this protocol — even after it has been deprecated, putting end users at risk.
https://www.notebookcheck.net/Google-s-new-Samba-client-for-Android-uses-the-highly-vulnerable-SMBv1-protocol.232490.0.html
How can iOS users be assured that any SMB client, file manager or video player is not secretly uploading data to external servers?