M365 News for September 2026
This post will be updated throughout the month as new items are added to the tag.
This post will be updated throughout the month as new items are added to the tag.
Here’s why this is such a big problem. Microsoft recommends blocking Copilot from accessing sensitive information in emails, meetings, documents, and related content by assigning a label to those items and creating a DLP policy that defines the block. This bug renders the system unusable for the affected emails. You simply can’t provide a governance tool that doesn’t deliver the governance it claims to provide. It’s a bad look, Microsoft. It doesn’t help build customer trust.
No, Copilot did not make these emails public or access private information and make it non-private. It accessed information in response to your prompt that it should ignore. That creates a risk that many users might assume does not exist. That is a significant issue, but it’s not equivalent to a data breach. There is another check in place before data leaks out: the end user.