Will overwritten my password in grinmint?

I am using grinmint to mine, and the only way I can set my password is through the toml configure file in grin-miner. Is it possible that if someone know my stratum login email, they can then rewrite my stratum password? Or the first password I ever use to login stratum with is unchangeable?

The first password you use to login is unchangeable. This is to prevent others from stealing your grins. If you want to change your password, you can create a new account.