Brute force Basic Authentication using a list of usernames and passwords from files for each FUZ[z] keyword, [h]iding response [c]odes of unsuccessful attempts
wfuzz -c --hc 401 -s delay_between_requests_in_seconds -z file,path/to/usernames -z file,path/to/passwords --basic 'FUZZ:FUZ2Z' https://example.com