Forum Discussion
CrisDC
Oct 22, 2026Copper Contributor
MS Purview DLP: Web search blocking also blocks Copilot response
Hello everyone, I am currently testing a Microsoft Purview DLP policy for Microsoft 365 Copilot that is intended to prevent personal or sensitive information contained in a Copilot prompt from being...
Creativejodielawrance
Oct 22, 2026Tin Contributor
Hello, this is what I believe the process to be:
When you submit a prompt, Copilot immediately starts generating its initial text response and querying external web sources concurrently. If the DLP policy detects that sensitive information triggered the web search block after the initial text stream has already started rendering on your screen, the safety/policy engine steps in immediately. It revokes and clears the generated output to prevent any potential data leakage to external search engines, replacing it with the policy notification block.
- CrisDCOct 22, 2026Copper Contributor
Yes, exactly. This is the behavior I am seeing.
Do you know if there is a solution or workaround for this? Or is this a known issue with the DLP action “Block web searches”?