School technology leaders are taking seriously the news of a flaw in many wireless infrastructures that could enable hackers to jam "open-air" transmissions using the simplest of handheld devices.

The vulnerability, first reported by the technology news service CNET, is said to involve devices operating on the most common stretch of wireless spectrum, dubbed the 802.11 standard by the Institute of Electrical and Electronic Engineers (IEEE), the standards-setting body responsible for approving new wireless protocols.

According to a May 13 security warning from the Australian Computer Emergency


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