<
https://medium.com/@intideceukelaire/why-you-shouldnt-share-links-on-facebook-f317ba4aa58b>
"While you may only share links to funny cat videos with your friends, you
should still be worried about this exploit. Sometimes, sensitive information
(personal data, secret keys, …) are included in links without you even
noticing."
Warning: Any link you share on Facebook, even a private share, is not secure
and should be considered public. Facebook's current position is that this is
working as designed.
Cheers,
*** Xanni ***