STIGQter: STIG Summary: Apple iOS/iPadOS 26 Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 13 May 2026:

Apple iOS/iPadOS 26 must implement the management setting: not allow messages in an ActiveSync Exchange account to be forwarded or moved to other accounts in the Apple iOS/iPadOS 26 Mail app.

DISA Rule

SV-278795r1150632_rule

Vulnerability Number

V-278795

Group Title

PP-MDF-993300

Rule Version

AIOS-26-011400

Severity

CAT II

CCI(s)

• CCI-000764 - Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

Weight

10

Fix Recommendation

Install a configuration profile to prevent Exchange messages from being moved or forwarded between email accounts.

Configuration Profile Key: PreventMove

Check Contents

Review configuration settings to confirm "Allow messages to be moved" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow messages to be moved" is unchecked under the Exchange payload.

On the iPhone and iPad:
1. Open the Settings app.
2. Tap "General".
3. Tap "VPN & Device Management".
4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the Exchange policy.
5. Tap "Mail".
6. Tap the name of the Exchange account.
7. Verify "Prevent Move" is set to "Yes".

If "Allow messages to be moved" is checked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "Prevent Move" set to "No", this is a finding.

Vulnerability Number

V-278795

Documentable

False

Rule Version

AIOS-26-011400

Severity Override Guidance

Review configuration settings to confirm "Allow messages to be moved" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow messages to be moved" is unchecked under the Exchange payload.

On the iPhone and iPad:
1. Open the Settings app.
2. Tap "General".
3. Tap "VPN & Device Management".
4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the Exchange policy.
5. Tap "Mail".
6. Tap the name of the Exchange account.
7. Verify "Prevent Move" is set to "Yes".

If "Allow messages to be moved" is checked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "Prevent Move" set to "No", this is a finding.

Check Content Reference

M

Target Key

5723