Microsoft Office Error - "This content presents a potential security issue. Do you trust this content?"

Howdy - if you are receiving the below error message when opening ANY Box files, note that it is in regards to this error: https://admin.microsoft.com/#/servicehealth/:/alerts/SP843810 (accessible via the Office365 Admin Console)

The full details as of today:

Issue ID: SP843810
Affected services: SharePoint Online
Status: Service degradation
Issue type: Advisory
Start time: 31 Jul 2024, 09:41 BST

User impact
Users may incorrectly receive a security warning prompt when opening Excel files in SharePoint Online.

More info
More specifically, users may incorrectly receive a security prompt when opening Excel files in the Excel app within SharePoint Online. Also, affected users may see the following message “This content presents a potential issue”.

Scope of impact
Impact is specific to some users, who are served through the affected infrastructure, attempting to open Excel files in the SharePoint Online Excel app.

Current status
31 Jul 2024, 12:24 BST
After reviewing the service telemetry, we’ve determined that the security warning prompt is the result of a necessary short-term fix for a separate issue that was recently implemented. We’re creating a long-term fix for this separate issue that’ll remove the need for this false security warning prompt, remediating impact. We expect that it will complete development and deploy on Tuesday, August 13, 2024. To suppress the warning for trusted sites, tenants can add the trusted sites and hostnames in the internet zones feature.

Microsoft, staying on brand, has not released a new update since. Even though they say it only relates to Excel, it is all Office files.

Barry Gould

August 14, 2024 08:52

The Microsoft fix has been implemented , but it does NOT solve the issue. I'm still getting the warning , i've rebooted my machine to doiuble check

Thanks

Barry

Mike Mortell

August 19, 2024 18:11

We are also still experiencing this on many Windows systems within our organization.

Nate

August 19, 2024 18:17

Strangely, and for no reason I can discern, it has largely disappeared from our organization. Their August 13th update reads like this:

"We've completed the development of the long-term fix and have begun deploying it to the affected environments. As the fix propagates, some users may experience impact relief, while others may need to restart to experience full remediation. Based on our current estimates, we expect the deployment to be completed by our next scheduled update."

By that I can only reason that the propagation of the fix is taking its sweet time making its way around the globe.

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