“The sky is falling! Wi-Fi encryption has been cracked!”
That is the way the news of the Krack Wi-Fi exploit was presented in the mainstream news media. As luck would have it on the day that news broke I was working in a client’s office in lower Manhattan and took a walk out onto Wall Street so see if there was any panic breaking out. There was not. Then I remembered reading years ago that some of the big New York financial institutions had a policy requiring that the wireless Ethernet cards be removed from the laptops used by their employees. Their security experts knew then that Wi-Fi is inherently insecure and always will be, so they got rid of it in their offices.