STIGQter: STIG Summary: Microsoft Edge Security Technical Implementation Guide Version: 2 Release: 5 Benchmark Date: 01 Apr 2026:

Access to Microsoft 365 Copilot writing assistance must be disabled.

DISA Rule

SV-279940r1156561_rule

Vulnerability Number

V-279940

Group Title

SRG-APP-000141

Rule Version

EDGE-00-000069

Severity

CAT II

CCI(s)

• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

Set the policy value for "Control access to Microsoft 365 Copilot writing assistance in Microsoft Edge for Business" to "disabled".

Check Contents

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Control access to Microsoft 365 Copilot writing assistance in Microsoft Edge for Business" must be set to "disabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge

If the value for "ComposeInlineEnabled" is not set to "REG_DWORD = 0", this is a finding.

Vulnerability Number

V-279940

Documentable

False

Rule Version

EDGE-00-000069

Severity Override Guidance

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Control access to Microsoft 365 Copilot writing assistance in Microsoft Edge for Business" must be set to "disabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge

If the value for "ComposeInlineEnabled" is not set to "REG_DWORD = 0", this is a finding.

Check Content Reference

M

Target Key

5280