I am getting this message when I attempt to use https://DuckDuckGo.com
duckduckgo.com uses an invalid security certificate. The certificate expired on 11/30/2013 1:34 PM. The current time is 11/30/2013 1:51 PM. (Error code: sec_error_expired_certificate)
I have tried two computers and different browsers.
Would love to be able to use the service again, confident that nothing has been compromised. Thanks!