The US Air Force is shutting down internet connections at bases which show they can't be trusted with enforcing network security.
Last year, the US military banned the use of USB drives and removable media to plug a worm assault.
Now, the Air Force has shut down its staff's web connection at a base in response to slack network security. More bases could be cut off if they don't improve.
Web access has been cut off at Maxwell Air Force Base in Alabama. Air Force Chief of Staff General Norton Schwartz told InsideDefense.com: "Personnel hadn't demonstrated - in our view at the headquarters - their capacity to manage their network in a way that didn't make everyone else vulnerable."
Norton Schwartz said: "This is the kind of effort that's required up and down the line."
Schwartz said the internet shutdown at the Alabama base was in response to a specific, significant intrusion. He said it had threatened the entire service's networks.
On network security, Schwartz told personnel: "This is not voluntary, this is the real deal, we have standards, and we will collectively enforce those standards or you won't be on the net."