If you have not heard about KRACK, you will be. Homeland Security made an announcement on Monday and it isn't pretty.
There is a vulnerability in public WIFI that allows criminals to snoop through supposedly encrypted packets found on public WIFI sites (specifically WPA and WPA2 sites)
Basically I have been told by my company to not use hotel/airport/other public WIFI unless it is certain the hardware they use has fixed this vulnerability. Under no circumstances am I to connect to corporate VPN or use a credit card over a public WIFI.
I really hope our admins can find out an official statement about the WIFI in properties and the plan to get this addressed.
There is a lot of speculation that it may take years to address. Assuming all properties have the same wifi routers and can be updated remotely this could take weeks/months. However firmware or hardware upgrades will take very long.
This is going to get ugly. I really wish Marriott still had the plug in network. You will see a lot of people use the phone or other hot spots now.