Three university students have discovered a major flaw in wireless network technology that means hackers can bring down critical infrastructure in as little as five seconds. The researchers suggest that using the IEEE 802.11b to operate critical infrastructure could be considered negligent. But we have previously suggested on how things can be improved and DoD has released new guidelines that should help us reducing the risk further.

Rad more at http://www.auscert.org.au/render.html?it=4091.