Security

Global war on ransomware? Hurdles hinder the US response

Foreign keyboard criminals with scant fear of repercussions have paralyzed U.S. schools and hospitals, leaked highly sensitive police files, triggered fuel shortages and, most recently, threatened global food supply chains.

Engineering

New inexpensive Wi-Fi system improves fire detection

A Sydney Harbor Tunnel explosion showcases the work of UNSW researchers using wireless signals and artificial intelligence to more accurately identify dangerous fire situations.

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