News emerged yesterday of a security vulnerability that affected millions of internet websites.

http://arstechnica.com/security/2014/04/critical-crypto-bug-in-openssl-opens-two-thirds-of-the-web-to-eavesdropping/

A fix has been published. The fix has been applied to PostRFP servers and relevant TLS certificates have been regenerated. These changes required some server reconfiguration and DNS records have been updated.

It is possible that some browsers will have cached old DNS records and will not be able find PostRFP. If so, the fix is to restart the browser.