Safeguarding Sensitive Data in Microsoft 365 Copilot with Purview DLP (GA Release)

The challenge with sensitive data and access to Copilot Microsoft 365 Copilot empowers users with AI-driven assistance across Microsoft 365 apps, but it also raises concerns about accidental oversharing of sensitive information. In response, Microsoft has extended its Purview Data Loss Prevention (DLP) capabilities to Microsoft 365 Copilot, allowing organizations to enforce information protection policies within AI workflows. The DLP for Microsoft 365 Copilot has been in preview for some time, but Microsoft has now announced it is released for GA (General Availability). Among some of the interesting features are new features like alerting and policy simulation. Key details:  Rollout Timeline: As of June 2025, the rollout has begun. It should be completed worldwide by late July 2025. Scope: Initially, DLP for Copilot was available for Copilot Chat scenarios. By the time of GA this is expanding to Copilot in core Office apps (Word, Excel, PowerPoint) as well. Ensuring that DLP prote...

A new update to "Assigned Numbers Script"

Thanks to some bug reports on the original post, I have now edited the Assigned Numbers script.

Hopefully, it will now give you a correct output of users with a lineURI.
I used this as an excuse to clean up the script, and sign it, so it can be run directly in your lab without interaction.

I have also tested and verified it in a Lync 2013 setup

The script has been moved to a new location, and can be found here