id: os_mail_move_messages_disable
title: Ensure Allow User to Move Messages from This Account is Set to Disabled
discussion: |
  Mail from institutionally configured mail accounts _MUST_ not be allowed to move to personal mail accounts to prevent data leakage.
references:
  nist:
    cce:
      ios_27:
        - CCE-XXXXX-X
      ios_26:
        - CCE-95667-2
      ios_18:
        - CCE-94449-6
      ios_17:
        - CCE-93433-1
      visionos_27:
        - CCE-XXXXX-X
      visionos_26:
        - CCE-96713-3
    800-53r5:
      - AC-21
      - CM-7
      - CM-7(1)
      - SC-4
      - SC-7(10)
  disa:
    cci:
      - CCI-000366
      - CCI-000370
      - CCI-000764
    disa_stig:
      ios_26:
        - AIOS-26-011400
      ios_18:
        - AIOS-18-011400
      ios_17:
        - AIOS-17-011400
        - AIOS-17-711400
      visionos_26:
        - AVOS-26-011400
    sfr:
      - 'FMT_SMF_EXT.1.1 #47'
    cmmc:
      - CM.L2-3.4.6
      - CM.L2-3.4.7
      - SC.L2-3.13.4
  bsi:
    indigo:
      ios_26:
        - ANNEX D (Section 5.6.1 - Mail)
      ios_18:
        - ANNEX D (Section 5.6.1 - Mail)
      ios_17:
        - ANNEX D (Section 5.6.1 - Mail)
  bzk:
    bio:
      - 8.12
  cis:
    benchmark:
      ios_26:
        - 2.7.1 (level 1 - End-User Owned Devices)
        - 3.7.1 (level 1 - Institutionally-Owned Devices)
      ios_18:
        - 2.7.1 (level 1 - End-User Owned Devices)
        - 3.7.1 (level 1 - Institutionally-Owned Devices)
      ios_17:
        - 2.7.1 (level 1 - End-User Owned Devices)
        - 3.7.1 (level 1 - Institutionally-Owned Devices)
    controls_v8:
      - 3.3
platforms:
  iOS:
    '27.0': {}
    '26.0':
      supervised: false
      benchmarks:
        - name: cis_lvl1_byod
        - name: cis_lvl2_byod
        - name: cis_lvl1_enterprise
        - name: cis_lvl2_enterprise
        - name: ios_stig
          severity: medium
        - name: indigo_base
          severity: medium
        - name: indigo_high
          severity: medium
        - name: nlmapgov_plus
    '18.0':
      supervised: false
      benchmarks:
        - name: cis_lvl1_byod
        - name: cis_lvl2_byod
        - name: cis_lvl1_enterprise
        - name: cis_lvl2_enterprise
        - name: ios_stig
          severity: medium
        - name: indigo_base
          severity: medium
        - name: indigo_high
          severity: medium
      mobileconfig_info:
        - PayloadType: com.apple.mail.managed
          PayloadContent:
            - EmailAccountType: EmailTypeIMAP
            - PreventMove: false
    '17.0':
      supervised: false
      benchmarks:
        - name: cis_lvl1_byod
        - name: cis_lvl2_byod
        - name: cis_lvl1_enterprise
        - name: cis_lvl2_enterprise
        - name: ios_stig
          severity: medium
        - name: ios_stig_byoad
          severity: medium
        - name: indigo_base
          severity: medium
        - name: indigo_high
          severity: medium
      mobileconfig_info:
        - PayloadType: com.apple.mail.managed
          PayloadContent:
            - EmailAccountType: EmailTypeIMAP
            - PreventMove: false
    introduced: '5.0'
  visionOS:
    '27.0': {}
    '26.0':
      supervised: false
      benchmarks:
        - name: visionos_stig
          severity: medium
    introduced: '1.1'
tags:
  - 800-53r5_low
  - 800-53r5_moderate
  - 800-53r5_high
  - cisv8
  - cmmc_lvl2
  - cmmc_lvl3
  - cnssi-1253_moderate
  - cnssi-1253_low
  - cnssi-1253_high
mobileconfig_info:
  - PayloadType: com.apple.mail.managed
    PayloadContent:
      - EmailAccountType: EmailTypeIMAP
      - PreventMove: true
