LOL i didn't think about Linux or Mac OS but I think you are right, better safe than sorry

Or, you know, update Windows? Many of the casualties since WannaCrypt are Windows XP systems. XP! No serious enterprise should still be using that or Vista. The vulnerabilities allowing these pests to spread were patched in modern Windows back in March. That's assuming the users are bothering to get the updates, of course. The issue was even patched in XP more recently, a rare move by Microsoft that underscores how bad the security failure is.

Linux rulls :D