Is signal jamming a security issue?
While there have been a few reports of signal jamming being used as a denial of service attack, signal jamming often comes from other sources. 802.11B networks operate in the 2.4-GHz frequency range. This is the same frequency range used by many cordless phones. It is possible for a wireless network signal to be disrupted by a cordless phone, a microwave oven, or another wireless network. In the past, one solution was to upgrade to a wireless network that used the 5.8-GHz frequency range. However, cordless phones now exist that operate on the 5.8-GHz frequency. Further, the signal from a 5.8-GHz network has a tougher time penetrating walls than the signal from a 2.4-GHz network.
