A high-severity hardware vulnerability, dubbed Kr00k, in Wi-Fi chips manufactured by Broadcom and Cypress expose over a billion devices to hack. The issue is related to the KRACK (Key Reinstallation Attacks) that was discovered in October 2017 and that works against almost any WPA2 network. The vulnerability could have a severe impact on the IT sector, the flawed chips are used in over a. billion devices, including routers, smartphones, tablets, laptops, laptops and IoT gadgets.”]
Source: https://securityaffairs.co/wordpress/98516/hacking/kr00k-wi-fi-encryption-flaw.html