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CIS Microsoft 365 Foundations E3 L2 v3.1.0

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Audit Details

Name: CIS Microsoft 365 Foundations E3 L2 v3.1.0

Updated: 6/16/2025

Authority: Cloud Services

Plugin: microsoft_azure

Revision: 1.1

Estimated Item Count: 24

Audit Items

DescriptionCategories
1.2.1 Ensure that only organizationally managed/approved public groups exist
1.3.3 Ensure 'External sharing' of calendars is not available
1.3.7 Ensure 'third-party storage services' are restricted in 'Microsoft 365 on the web'
1.3.8 Ensure that Sways cannot be shared with people outside of your organization
2.1.14 Ensure comprehensive attachment filtering is applied
5.1.2.2 Ensure third party integrated applications are not allowed
5.1.2.5 Ensure the option to remain signed in is hidden
5.1.2.6 Ensure 'LinkedIn account connections' is disabled
5.1.5.2 Ensure user consent to apps accessing company data on their behalf is not allowed
5.1.6.1 Ensure that collaboration invitations are sent to allowed domains only
5.2.2.5 Ensure 'Phishing-resistant MFA strength' is required for Administrators
6.3.1 Ensure users installing Outlook add-ins is not allowed
6.5.3 Ensure additional storage providers are restricted in Outlook on the web
7.2.4 Ensure OneDrive content sharing is restricted
7.2.5 Ensure that SharePoint guest users cannot share items they don't own
7.2.6 Ensure SharePoint external sharing is managed through domain whitelist/blacklists
7.2.8 Ensure external sharing is restricted by security group
7.3.2 Ensure OneDrive sync is restricted for unmanaged devices
8.1.1 Ensure external file sharing in Teams is enabled for only approved cloud storage services
8.5.1 Ensure anonymous users can't join a meeting
8.5.5 Ensure meeting chat does not allow anonymous users
8.5.6 Ensure only organizers and co-organizers can present
8.5.8 Ensure external meeting chat is off
9.1.5 Ensure 'Interact with and share R and Python' visuals is 'Disabled'