Concerns about my companies network

So some time ago I got a job at a place that has an giant WiFi network, and, while I'm not in network security to any extent, I have some concerns about the setup.

The WiFi uses PEAP with MSCHAPv2 authentication and no CA certificates. Importantly, the credentials we use to connect are our actual work logins -- if someone could grab those they could do some real damage.

Now, I've heard bad things about both PEAP and MSCHAP, but …

authentication certificates companies connect credentials cybersecurity giant job network network security security wifi