Sep 10 17:39:01 user CRON[28734]: pam_unix(cron:session): session opened for user root by (uid=0)
Sep 10 17:39:01 user CRON[28734]: pam_unix(cron:session): session closed for user root
Sep 10 17:42:31 user sudo: pam_unix(sudo:auth): auth could not identify password for [user]