A malware infection recently disabled the communications network for New Zealand's St. John Ambulance service, forcing dispatchers to use manual backup systems.

"Mobile data and paging services were worst affected by the problem, suggesting that some sort of bandwidth-hogging worm overloaded the system," writes The Register's John Leyden.

"The St John Ambulance network handles 90 per cent of the ambulance cover across New Zealand," Leyden writes. "It is unclear if any emergency call-outs were affected by the problem or what affect this might have had on response times."

Go to "Mystery malware poisons NZ ambulance system" to read the details.

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