nshop/app/Auth/CustomerUserProvider.php

<?php

namespace App\Auth;

use App\Support\Magento1Password;
use Illuminate\Auth\EloquentUserProvider;
use Illuminate\Contracts\Auth\Authenticatable as UserContract;

class CustomerUserProvider extends EloquentUserProvider
{
    /**
     * {@inheritdoc}
     */
    public function validateCredentials(UserContract $user, array $credentials): bool
    {
        $plain = $credentials['password'] ?? null;

        if (! is_string($plain) || $plain === '') {
            return false;
        }

        return Magento1Password::attempt($user, $plain);
    }
}