I’m a bit rusty and could be wrong but doesn’t MSCHAPv2/CHAP require knowledge of the plaintext password on the server side? I think that makes it required to b

I’m a bit rusty and could be wrong but doesn’t MSCHAPv2/CHAP require knowledge of the plaintext password on the server side? I think that makes it required to be stored plaintext for any PPP connection and thus most if not all ISPs would be storing plaintext passwords