Data transfer policy fails to block upload for OneDrive

Products

• CASB Gateway Advanced
• CASB Advanced Threat Protection
• CASB Audit
• CASB Gateway
• CASB Security Advanced
• CASB Security Advanced IAAS
• CASB Security Premium
• CASB Security Premium IAAS
• CASB Security Standard
• CASB Securlet IAAS
• CASB Securlet SAAS
• CASB Securlet SAAS With DLP-CDS

Issue/Introduction

A Data transfer policy with a minimum file size requirement violates the policy correctly, but fails to block the upload to Microsoft OneDrive.

The same policy without the file size requirement blocks files of all sizes.

Resolution

The o365 gatelet should protect OneDrive uploads. Broadcom is looking to address this issue in a future release.

To workaround the issue add the MS teams gatelet to the policy.