When I first saw this, I told my ISOs that the “internet is broken.” This is just the first of what I expect to be a torrent of problems:
“A Turkish grad student has devised a serious, real-world attack on Twitter that targeted a recently discovered vulnerability in the secure sockets layer protocol.
The exploit by Anil Kurmus is significant because it successfully targeted the so-called SSL renegotiation bug to steal Twitter login credentials that passed through encrypted data streams. When the flaw surfaced last week, many researchers dismissed it as an esoteric curiosity with little practical effect.”
http://www.theregister.co.uk/2009/11/14/ssl_renegotiation_bug_exploited/
My advice? Quit doing internet banking. Use a monitored credit card for shopping online. Have a separate password for everything. It will be a long time until this is fixed.