There was an email on the 24th of May, 2015.
I certainly did not get it, and I asked a few people from whom nobody got it either.
Some service providers block certain IPs the forum uses to send emails so that may be why.
Perhaps. I certainly got it (as someone who doesn't use hotmail as an email provider, not disclosing my email provider though) and there is a warning at the top of the forum telling you to change your passwords, so I don't see what else could or should be done to keep people "safe".