Plugging RF leaks

Have you considered wrapping your building in tinfoil or slathering the walls with metal-impregnated paint to keep RF signals from leaking out? If so, you might want to hold off till September, when a simpler alternative is expected to arrive.

Meru Networks says its forthcoming RF Barrier product will keep your corporate WLAN signals from seeping through building walls into parking lots and other public areas where nefarious eavesdroppers might lurk. The product comprises a Meru AP-200 802.11a/b/g access point with special packet-inspection software plus a 180-degree directional antenna. You mount it outside the building – at least one AP/antenna pair per outside wall per channel in use – and the device corrupts 11a/b/g signals emanating from authorized MAC addresses, rendering them gibberish to hackers and war-drivers.