http://www.perlmonks.org?node_id=784123

Subject: user database compromised
"all perlmonks users are advised to change their perlmonks.org passwords immediately."
Once things have settled down a bit, I would like to have a bit more of an explanation as to what happened, how, etc.

Update:
Removed the facebook link that was confusing some people

Update 2:
Please see node Status of Recent User Information Leak for the official status/response from the gods.