Data Filtering with Google Drive

[MVanHelvert]

Hello, Looking for some guidance with Data Filtering. I've created a data pattern with the predefined pattern for Credit Cards. I've assigned the pattern to my data filtering profile and applied it to my outbound web traffic security rule. I have set the threshold for blocking to 1 so that it blocks any occurrence that fits the credit card pattern. I tested it and it worked with all my tests except for Google Drive. The firewall still lets the file with dummy credit card info upload to it. If anyone could point me in the right direction I would appreciate as all my investigating has been unsuccessful. Thank you