General: What is KRACK and How to prevent this Wifi Vulnerability
Community Manager has already provided the solution here: This is just for general discussion.
KRACK Wifi Vulnerability is the most trending topic in Cyber Industry right now due to its impacts on Wifi routers. But here's something you should read before taking any step.
A research discovered that WPA-2 wifi networks are no more secure now and KRACK Vulnerability can easily decrypt all the data. But here's the catch that hacker should be within the range of your router.
My suggestion to IoT device users that avoid connecting to Wifi networks. Please, use mobile cellular data for now which is a better and secure way for now.
Or connect to a VPN network while accessing the internet. It can save your device from getting decrypted.
I can't describe in that depth but here's How to Protect Yourself From KRACK WiFi Vulnerability
I hope it will help you. If anyone can share something about this, please step ahead.