[Security solution][Attacks] Prioritise user full name (#259557)

NicholasPeretti · web-flow · commit b915a7b881e4 · 2026-03-25T14:03:19.000Z
## Summary Follow up to #258853 (comment)
diff --git a/x-pack/solutions/security/plugins/security_solution/public/detections/components/attacks/table/attack_group_content/assignees_badge.tsx b/x-pack/solutions/security/plugins/security_solution/public/detections/components/attacks/table/attack_group_content/assignees_badge.tsx
@@ -36,7 +36,9 @@ export const AssigneesBadge = ({ assignees }: { assignees: string[] }) => {
     []
   );
   const renderAssigneeItem = useCallback((user: AssigneeItem, index: number) => {
-    const displayName = user ? user.user.email ?? user.user.username : UNKNOWN_USER_PROFILE_NAME;
+    const displayName = user
+      ? user.user.full_name ?? user.user.email ?? user.user.username
+      : UNKNOWN_USER_PROFILE_NAME;
     return (
       <EuiFlexGroup
         key={index}
