What is the difference between a username and a display name?¶

A messaging profile may show both a username and a display name.

Evidential caution: that either one is necessarily a verified identity.

What this means¶

A username is usually an identifier used by the service to distinguish the account. It may form part of a profile link, mention or account search.

A display name is the label presented to other users. It may be chosen freely, duplicated by many accounts or changed without affecting the underlying account.

On some services, the visible name in a conversation may come from the recipient’s own contacts rather than from the account profile. That means two people can see different names for the same account.

The username may be more useful than the display name, but it can still change. The strongest continuity often comes from a stable internal account or user ID.

When comparing records, use stable IDs where available. Similar names are not enough to establish that two records relate to the same account.

In reporting, describe what each field represents. Avoid converting a display name into a verified personal identity.

What to check or do next¶

• Preserve all available identifiers together: username, display name, profile URL, account ID, telephone number, service-specific user ID and profile image.
• Do not rely on screenshots showing only a name. Capture the profile or account details where lawful and proportionate, and record the date because names and usernames may change later.