Ensure users can report security concerns in Teams

MediaNivel 1Revisión manualm365

Descripción

User reporting settings allow a user to report a message as malicious for further analysis. This recommendation is composed of 3 different settings and all must be configured for compliance: - In the Teams admin center: On by default and controls whether users are able to report messages from Teams. When this setting is turned off, users can't report messages within Teams, so the corresponding setting in the Microsoft 365 Defender portal is irrelevant. - In the Microsoft 365 Defender portal: On by default for new tenants. Existing tenants need to enable it. If user reporting of messages is turned on in the Teams admin center, it also needs to be turned on the Defender portal for user reported messages to show up correctly on the User reported tab on the Submissions page. - Defender - Report message destinations: This applies to more than just Microsoft Teams and allows for an organiza...

Cómo se verifica

Método de auditoría: Revisión manual

Esta recomendación no se puede verificar automáticamente. Un escaneo la lista con estas instrucciones cuando se pasa --include-manual.

To audit using the UI: 1. Navigate to Microsoft Teams admin center https://admin.teams.microsoft.com. 2. Click Settings & policies and select the Global (Org-wide default) settings tab. 3. Select Messaging to open the messaging settings section. 4. Verify that Report a security concern is On. 5. Next, navigate to Microsoft 365 Defender https://security.microsoft.com/ 6. Expand System > Settings and select Email & collaboration. 7. Click on User reported settings. 8. Under Microsoft Teams verify that Monitor reported items in Microsoft Teams is checked. 9. Verify that Send reported messages to: is set to My reporting mailbox only with report email addresses defined for authorized staff. To audit using PowerShell: 1. Connect to Teams PowerShell using Connect-MicrosoftTeams. 2. Run the following cmdlet for to assess Teams: Get-CsTeamsMessagingPolicy -Identity Global | fl AllowSecurityEndUserReporting 3. Verify that the value returned is True. 4. Connect to Exchange Online PowerShell using Connect-ExchangeOnline. 5. Run this cmdlet to assess Defender: Get-ReportSubmissionPolicy | fl Report* 6. Verify that the output matches the following values with organization specific email addre...

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

To remediate using the UI: 1. Navigate to Microsoft Teams admin center https://admin.teams.microsoft.com. 2. Click Settings & policies and select the Global (Org-wide default) settings tab. 3. Select Messaging to open the messaging settings section. 4. Set Report a security concern to On. 5. Next, navigate to Microsoft 365 Defender https://security.microsoft.com/ 6. Expand System > Settings and select Email & collaboration. 7. Click on User reported settings. 8. Under Microsoft Teams check the box for Monitor reported items in Microsoft Teams and click Save. 9. Set Send reported messages to: to My reporting mailbox only with reports configured to be sent to authorized staff. To remediate using PowerShell: 1. Connect to Teams PowerShell using Connect-MicrosoftTeams. 2. Connect to Exchange Online PowerShell using Connect-ExchangeOnline. 3. Run the following cmdlet: Set-CsTeamsMessagingPolicy -Identity Global -AllowSecurityEndUserReporting $true 4. To configure the Defender reporting policies, edit and run this script: $usersub = "userreportedmessages@fabrikam.com" # Change this. $params = @{ Identity = "DefaultReportSubmissionPolicy" EnableReportToMicrosoft = $false ReportChatMess...

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: m365saas
Referencia: CIS Microsoft 365 Foundations Benchmark v7.0.0 - 8.6.1 Ensure users can report security concerns in Teams