This object reports the username associated with a specific failed remote-access session attempt recorded in the failure table. An admin reviewing a spike in login failures scans this column across recent rows to see whether failures are spread across many different accounts (suggesting a broad brute-force sweep) or concentrated on one (suggesting a targeted attack or a user who simply forgot their new password). A row showing repeated failures for the same username, 'jsmith', dozens of times in a short window would prompt a temporary account lock or a call to that user.