killmofasta notes an LA Times story on a severe and widespread attack on US military computers that may have originated in Russia. Turns out the military's recent ban on flash drives was a precursor to this attack, which was significant enough that the President and the Defense Secretary were briefed on it. "The 'malware' strike, thought to be from inside Russia, hit combat zone computers and the US Central Command overseeing Iraq and Afghanistan. The attack underscores concerns about computer warfare. 'This one was significant; this one got our attention,' said one defense official, speaking on condition of anonymity when discussing internal assessments. Although officials are withholding many details, the attack underscores the increasing danger and potential significance of computer warfare, which defense experts say could one day be used by combatants to undermine even a militarily superior adversary. ... [A defense official said] 'We have taken a number of corrective measures, but I would be overstating it if I said we were through this.'"