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.
FT Edit: Access on iOS and web
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The cost of PC components has been skyrocketing as AI infrastructure buildout creates extraordinary demand amid limited supply. HP says that squeeze is now hitting PC memory especially hard, with RAM now accounting for 35 percent of a system’s overall cost.