US Secretary of defense Robert Gates, speaking at a news briefing, said that the penetrated system was an unclassified one that does not contain information related to military operations.
Gates says that the Defense Department gets "perhaps hundreds of attacks a day."
You can read more here:
Cyber attack on Pentagon e-mail (BBC News)
Hacker breaks into Pentagon email system (The Register)
Pentagon e-mail taken down by hackers (Ars Technica)
Apparently, in various reports, when pressed further about whether his own e-mail was disrupted by the security breach, Gates explained that he is a "low-tech person" and doesn't personally "do e-mail."
Astounding indeed. Do you have any management or senior-level personnel in your company who do not use e-mail? Join the discussion.