New information about the "important infrastructure issue" affecting to Fedora Project has been released today.

Mr. Paul W. Frields, Fedora Project Leader has posted an announcement about the facts, including:

"One of the compromised Fedora servers was a system used for signing Fedora packages."

More information available at
https://www.redhat.com/archives/fedora-announce-list/2008-August/msg00012.html 
and
http://blogs.securiteam.com/index.php/archives/1130 

Juha-Matti