How can hackers access WP usernames? [duplicate]

  1. Many themes echo the post author names associated with posts.
    Those are in some cases the same as the username.
  2. The author archive links, depending on the permalink can reveal the
    username as well– /author/admin

Getting the username is fairly trivial. I am sure there are other ways to manage it.

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Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)