I want to know if the attact on my websites were successful based on the response code from my server

My websites got attacked with a bruteforce attack and this is the log I get from my server. Just want to confirm that they didn’t got any data - - [20/Jul/2021:09:21:19 -0700] "POST //xmlrpc.php HTTP/1.1" 200 401 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4240.193 Safari/537.36"