As a follow-up to this post, I found this forum transcript to be a mildly informative overview of the Chinese cyber threat. This question is really troubling, if true:
Joe in Groton, CT: I am an administrator of a DoD network. Why haven't I heard anything from up above about what types of attacks they are using, and whether or not Sysadmins need to take any extra steps to secure our networks? As a matter of fact, I haven't even heard anything from the DoD that there was a compromise at all. There was not even a post at the infosec web site about any compromise. If it wasn't for the SANS newsletter, I wouldn't have even found the GCN website. I feel that we need to share information within our community so we can all be more proactive in protecting our networks and our data. I get the impression that without this cohesion, we are sitting ducks.
That is sad. DoD is being owned and the people in one of the best positions to resist, and potentially detect and respond, are not aware of what's happening!