Function _flatten_credentials_for_compliance

webapp_modern.py:6478–6487

()

                new_row['MAC Address'] = mac_to_store
            else:
                # Don't generate pseudo MAC - let ARP cache provide real MAC addresses
                new_row['MAC Address'] = ''
            new_row['Alive'] = alive_value
            # CRITICAL: Don't set Ports to '' - preserve existing ports if they exist
            # The Ports field should only be updated by scanning.py during actual port scans
            # Leave it empty for new entries, but scanning.py will populate it
            new_row['Ports'] = new_row.get('Ports', '')  # Preserve if exists, empty if new
            rows.append(new_row)
            updated_row = new_row

        with open(netkb_path, 'w', newline='', encoding='utf-8') as f:
            writer = csv.DictWriter(f, fieldnames=headers)
            writer.writeheader()