A security weakness named “Krack Attack” was found in the popular WPA2 protocol used for Wi-Fi access on computers, tablets and smartphones.  This would allow a hacker to spy on data sent via Wi-Fi under these conditions:

• The website currently being used is not secured (no https:// used in web address)
• The hacker is in range and connected to the same Wi-Fi network.

Microsoft stated that it issued a security update on October 10th 2017 to fix this issue and should have been installed as part of standard Windows Updates .

The CERT Vulnerability Notes Database has logged this issue as Vulnerability Note VU#228519.

More information can be found at www.krackattacks.com.