---
schema_version: "1"
id: df630d6fd52a93f103d902b9c6e91259e07cd8e47af717752b8819c7c5d6c195
title: Security Center Extension Tabs
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/sc_ext_feature_tab_fields.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.sc_ext_feature_tab_fields.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: c9b9e2507ab08ab81f6827c9384e1dfd3f164d5c6aa853a876627414255ab53c
description: Feature tabs provide a framework for maintaining data integrity and confidentiality within Salesforce. Understand which fields are displayed on the Security Center Extension tabs.
products:
  - Security
  - Salesforce Platform
release: "264"
---
# Security Center Extension Tabs

Feature tabs provide a framework for maintaining data integrity and confidentiality within Salesforce. Understand which fields are displayed on the Security Center Extension tabs.

## Data Classification

Displays almost all fields in an org, except for the following:

- Non-customizable entities.
- Fields from expired or unlicensed packages.
- Specific fields:
    - Email Message: AttachmentIDs
    - List Email: SentVia
    - Campaign: ShowCampMembChart
    - Event: Attendees
    - Event: ActivityRecurrence2ID
    - Event: ActivityRecurrence2ExceptionID
    - Lead: LastModifiedByID
    - Lead: CreateByID
- Specific system fields:
    - ID Fields
    - Last Modified Date
    - Last Referenced Date
    - Last Viewed Date
    - Last Activity Date
    - System Modstamp
    - Created Date
    - Is Deleted

## Who Sees What Explorer

Displays objects and fields that apply to Field-Level Security (FLS), “Create, Read, Update, and Delete” (CRUD), and access.