Beware of "encrypted" .PDF files

A new type of malware attack... you try to download a .pdf file, only to be advised that it's "encrypted".   You reach out to the source of the link, who says they'll send you an "unencrypting tool" --- which turns out to be loaded with malware.

https://www.msn.com/en-us/news/technology/beware-of-encrypted-pdfs-as-latest-trick-to-deliver-malware-to-you/ar-BB1kSUt0?