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Billions of devices vulnerable to Wi-Fi ‘FragAttacks’ — what to do

Up to a dozen serious security flaws affect almost all Wi-Fi-enabled devices, including PCs, Mac, iPhones, Android phones, most routers and smart-home devices, says a Belgian security researcher. You’ll want to update Windows straight away; most other devices will have to wait for patches.

Mathy Vanhoef, who in 2017 co-discovered the widespread KRACK flaws in Wi-Fi, groups these 12 new flaws under the name “FragAttacks.” He’s put an impressive amount of documentation online to explain the flaws, including a dedicated FragAttacks website, an academic research paper, a presentation slideshow, two YouTube videos and a software tool to detect vulnerable devices.

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