Researchers at Belgium’s University of Leuven have uncovered as many as 10 critical vulnerabilities in the Wi-Fi Protected Access II (WPA2) protocol used to secure WiFi networks. The vulnerabilities are present on both client and access point implementations of the protocol and give attackers a way to decrypt data packets, inject malware into a data stream and hijack secure connections via so-called key reinstallation attacks (KRACKs) The KRACK attacks work on all modern wireless networks using the WPA2 protocol and any device that supports WiFi is most likely impacted.”]
Source: https://www.darkreading.com/attacks-breaches/secure-wifi-hijacked-by-krack-vulns-in-wpa2