If you are running Windows and your operating system is up to date you are safe to use your wireless connection.
See this link: http://bit.ly/2igiX4c
The problem remains and will continue for any other operating system, especially phones.
Using phones on a router that has not been updated will open them to a security breach. Assume that any wireless connection is suspect. Well, actually that is generally a good idea anyway.
This includes personal hotspots.
Even though the connection between the phone company and the hotspot is secure, the connection between the hotspot and your computer is suspect. I would verify through your vendor that the patch has been put in place (and I doubt that any of them have or will do so immediately).