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

Robert Lipovsky, Senior Malware Researcher, ESET
Stefan Svorencik, ESET, Senior Detection Engineer

Initially discovering that some Amazon Echoes and Kindles were vulnerable to attacks against WPA2 (KRACK), 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.

Pre-Requisites: A basic understanding of WPA2 (including the four-way handshake) is beneficial.

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