When the failed login in my site, logged error in laravel.log file. I use laravel passport for the api authentication.
Error:
[2018-08-06 13:27:35] local.ERROR: League\OAuth2\Server\Exception\OAuthServerException: The user credentials were incorrect. in /home/roberto/new_site/vendor/league/oauth2-server/src/Exception/OAuthServerException.php:128
How to disable the oauth log?