A weakness in a security protocol that Wi-Fi devices rely upon, has put wireless-enabled devices at risk of attack. Wi-Fi Protected Access II (WPA2) encryption is used to encode Wi-Fi traffic to protect and secure communications between routers, mobile devices, and Internet of Things (IoT) devices. The Key Reinstallation Attack, or “KRACK” can allow an attacker within range of a Wi-Fi network to gain access to unencrypted traffic sent over the internet.

Many people will have read about the computer virus called ‘WannaCry’ that is circulating internationally. It is a ransomware attack targeting the Microsoft Windows operating system. On Friday, 12 May 2017, a large cyber-attack was launched using it, infecting more than 230,000 computers in 150 countries.

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