KRACK — Key Reinstallation Attack

A KRACK attack is a cyber attack aimed at compromising a Wi-Fi channel with WPA2 encryption. At the third stage of four-way validation of the cryptokey, the cybercriminal can resend the secret sequence and weaken the security of the connection. A KRACK attack can result in traffic interception, spoofing, or the transmission of falsified data packets to the client.