Wi-Fi Alliance has drawn up a plan to remedy the situation, but its going to be a while before WPA2 is fully patched. Android devices running OS 6.0 or newer are the most vulnerable because of a flawed implementation of WPA1. Windows users should install whatever update / patch is already available, use HTTPS-secured websites and/or use VPN service to encrypt inbound and outbound transmissions. Google has also confirmed it is testing a patch for KRACK for its new watchOS and tvOS watchOS.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/how-to-protect-yourself-from-the-krack-wi-fi-attack/