Rescue teams searching for earthquake survivors in central Italy have asked locals to unlock their Wifi passwords. The Italian Red Cross says residents' home networks can assist with communications during the search for survivors, reports BBC. From the report: On Wednesday a 6.2 magnitude earthquake struck central Italy and killed more than 240 people. More than 4,300 rescuers are looking for survivors believed to still be trapped in the rubble. On Twitter, the Italian Red Cross posted a step-by-step guide which explains how local residents can switch off their Wifi network encryption. Similar requests have been made by the National Geological Association and Lazio Region. A security expert has warned that removing encryption from a home Wifi network carries its own risks, but added that those concerns are trivial in the context of the rescue operation.