A tram derailed and crashed into a building in Milan on Friday, killing two people and injuring 38 others.
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In the early days, public Wi-Fi networks often resembled the Wild West, where ARP spoofing attacks that allowed renegade users to read other users' traffic were common. The solution was to build cryptographic protections that prevented nearby parties—whether an authorized user on the network or someone near the AP (access point)—from reading or tampering with the traffic of any other user.
One of the biggest developments in the fire alarm space in recent years has been the rise of smart tech – wi-fi connected alarms that reach you by phone, for example, if they sense smoke while you are out.