The Bundesamt für Sicherheit in der Informationstechnik (Germany’s Federal Office for Information Security) today warned against the use [1] of Internet Explorer until a full patch is released for this critical “zero day” weaknesses called Aurora.
More details (in English) from the BBC here [2], and a technical discussion here [3].
“Using Internet Explorer in ‘secure mode,’ as well as turning off Active Scripting makes attacks more difficult, but can not fully prevent them,” BSI said in its statement.