“It fills the airwaves with probes that request connections to nearby computing devices. When the specially devised requests reach a device using the BCM43xx family of Wi-Fi chipsets, the attack rewrites the firmware that controls the chip. The compromised chip then sends the same malicious packets to other vulnerable devices, setting off a potential chain reaction.”

Read more: https://arstechnica.com/information-technology/2017/07/broadcom-chip-bug-opened-1-billion-phones-to-a-wi-fi-hopping-worm-attack/

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