I try to connect to a Wi-Fi network, Eduroam, using my new Android device. It asks me to provide the CA certificate and warns that otherwise my connection would not be private.
No certificate specified. Your connection will not be private.
On my previous device, I did not have such warning message. The IT administrator says it's OK not to provide the certificate, but I'm not so sure about it. He said that our organization does not have it.
What threats am I exposed to, if I use this network without CA certificate?
Does it cost for an organization to get it?