Information
If the file /var/adm/loginlog exists, it will capture failed login attempt messages with the login name, tty specification, and time. This file does not exist by default and must be manually created.
Solution
Perform the following to implement the recommended state-
touch /var/adm/loginlog
chown root:sys /var/adm/loginlog
chmod 600 /var/adm/loginlog
logadm -w loginlog -C 13 /var/adm/loginlog