US ARMY Server Attacked
A computer intruder armed with a secret, particularly effective attack tool recently took control of an Army Web server, says MSNBC. Both Microsoft and the CERT Coordination Center released hastily-prepared warnings about the vulnerability that led to the attack on Monday. But it was a disturbingly successful attack, experts say, because the intruder found and exploited a flaw that took security researchers completely by surprise.

In the computer security world, such secret vulnerabilities are called zero-day exploits. It's at least a year since a significant zero-day exploit was revealed, said Chris Rouland, director of Internet Security Systems-Force research team. Because hackers have the upper hand in this vulnerability, his has a very high degree of urgency, Rouland said. More found here