Kr00k: How KRACKing Amazon Echo Exposed a Billion+ Vulnerable WiFi Devices

Initially discovering that some Amazon Echoes and Kindles were vulnerable to attacks against WPA2 (KRACK), researchers at ESET then found that a related attack, which could enable adversaries to decrypt wireless network packets, affects WiFi chipsets used in over a billion devices including some by Apple, Google, and Samsung.
The vulnerability, dubbed Kr00k by researchers, affects devices with Wi-Fi chips by Broadcom and Cypress—used in a vast range of devices with wireless internet, including Apple, Google, and Samsung phones. But security updates have already been deployed to fix the issue, so the best advice is to make sure your computers, phones, and all internet-connected devices have the latest software and firmware.

Read more at MIT, and or RSA Conference