It is hard to believe but someone has figured out how to jam all wireless signals in a 1 kilometer radius with the use of a PDA.
“A vulnerability just found in the 802.11 wireless standard will allow a remote attacker to jam all wireless networks within a one kilometer radius using a standard Wi-Fi PDA or similar wireless enabled device.
According to the Australian Computer Emergency Response Team, AusCERT, this new attack specifically exploits the CCA function at the physical layer and causes all WLAN nodes within range of the
