When $CFG->notifyloginfailures is set, the selected users get mails as soon as a user tries to login and does not succeed.

The mail gives information about time & date, IP and username of the failed login.

I would like to propose to add an additional column to the mail text which tells the real name of the user whose username was used to login. This way, admins could better assess if
a) the failed login belongs to a real user account in Moodle and was not caused by a typo in the username
b) the affected user account belongs to an important Moodle user (school director, member of teacher staff) and might be under attack