Unfortunately, one possibility is the user chose "enable SSH password authentication" during the install [1]. Or it's a cloud instance from a provider that prov

Unfortunately, one possibility is the user chose "enable SSH password authentication" during the install [1]. Or it's a cloud instance from a provider that provisions instances with a password. [1]: https://askubuntu.com/a/1440509 https://askubuntu.com/a/1440509