If this is as bad as they claim we are very lucky that all wifi routers in the world are regularly upgraded and everyone will patch this in no time....
#^KRACK Attacks: Breaking WPA2This website presents the Key Reinstallation Attack (KRACK). It breaks the WPA2 protocol by forcing nonce reuse in encryption algorithms used by Wi-Fi.
#^Severe flaw in WPA2 protocol leaves Wi-Fi traffic open to eavesdroppingKRACK attack allows other nasties, including connection hijacking and malicious injection.