pay_center_server/vendor/laravel-lang/lang/locales/ko/auth.php

<?php

/*
|--------------------------------------------------------------------------
| Authentication Language Lines
|--------------------------------------------------------------------------
|
| The following language lines are used during authentication for various
| messages that we need to display to the user. You are free to modify
| these language lines according to your application's requirements.
|
*/

return [
    'failed'   => '제출된 인증 정보가 레코드와 일치하지 않습니다.',
    'password' => '제공된 비밀번호가 올바르지 않습니다.',
    'throttle' => '너무 많은 로그인을 시도하였습니다. :seconds 초 후에 다시 시도하십시오.',
];