Mike McBride on M365

Mike McBride on M365

The Vagueness of Copilot Notebooks

What is it in terms of eDiscovery?

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Mike McBride
Jun 24, 2025
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I recently began testing Copilot Notebooks at work, and it’s an interesting tool. The idea is that you collect up to 20 “references” from your world data and create a notebook that you can ground Copilot on, and then use that notebook to glean information and responses based on only those reference documents.

It’s a way to create mini-agents for people who find agents to be a bit too technical.

It also features a one-click option to generate an audio summary of your references, which sounds like a podcast of two people discussing the content of your references.

I can see many scenarios where this will be useful.

Of course, the questions I immediately had for this newsletter were:

  • Where is the information stored?

  • Is it discoverable?

This is a little more nuanced than I expected, so let’s get into it:

First, let’s define what data we may be looking for:

  • The notebook itself.

  • List of references. (Are they attachments?)

  • Copilot interactions within the notebook.

  • Pages created in the Notebook.

  • Audio Summaries.

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