Netskope Global Technical Success (GTS)

Google Gemini - Block Google Drive integration

Netskope Cloud Version - 124

Objective

Block Google Drive integration within Gemini

Prerequisite

Netskope SWG  license is required

Context

Google has integrated Google Gemini with various applications, including Gmail and Google Drive. Some organizations have granted access to the Google Gemini Chatbot (https://gemini.google.com/) for their end-users, but may wish to block Google Gemini integration with Google Drive where end users can upload files from their Google Drive instance.. This document outlines a solution for addressing this specific use case.

Do You Know

• Google Gemini holds ~14% of the market share in the generative AI chatbot space. Reference - Link
• The Drive integration feature on Google gemini, was introduced by google on Feb 20, 2025
• This allows users to upload any files from Google Drive to Gemini.

• When end users interact with Gemini and try to choose a file from Google Drive, the traffic is redirected to the URL docs.google.com/picker/v2/home while the Referrer is https://gemini.google.com

• So to block embedding files from Google Drive, a policy can be created to block the URLs with the referrer criteria.

Configuration

Step 1 - Create a custom URL category 

Path: Netskope Tenant UI >>> Policies >>> Profile - - - URL Lists

Path: Netskope Tenant UI >>> Policies >>> Profile - - - Custom Categories

Step 2 - Create a HTTP Header profile

Path: Netskope Tenant UI >>> Policies >>> Profile - - - HTTP Header

Step 3 - Real-time protection policy

Path: Netskope Tenant UI >>> Policies >>> Real-time Protection >>> New Policy

Verification

When you try to embed the files from Google drive, you get the below block prompt

Note - User Notification format used above Link

Skope IT Alerts 

Path: Netskope Tenant UI >>> Skope IT >>> Alerts

Author Notes

• Always test the above policy on a subset of users before rolling out in production.

Terms and Conditions

• All documented information undergoes testing and verification to ensure accuracy.
• In the future, it is possible that the application's functionality may be altered by the vendor. If any such changes are brought to our attention, we will promptly update the documentation to reflect them.

Notes

• This article is authored by Netskope Global Technical Success (GTS).
• For any further inquiries related to this article, please contact Netskope GTS by submitting a support case with 'Case Type – How To Questions'.