Bitcointalk.org down
UPDATE.
Bitcointalk is back, but do not log in just yet.
“December 02, 2013, 12:08:00 PM *
Login temporarily discouraged
News: If you used your password to login between 06:00 Dec 1 UTC and 20:00 Dec 2 UTC (this is in the future — do not login until then), then your password may have been captured in a man-in-the-middle attack, and you should change your password here and wherever else you used it. If you were only logged in via the “remember me” feature, then you’re OK.”