o365 securlet exposed users increased after 3.165

Products

• CASB Audit
• CASB Advanced Threat Protection
• CASB Gateway
• CASB Gateway Advanced
• 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

Exposed users for mail in the o365 securlet increased sharply after Dec 5th.

Resolution

CASB 3.165 changed exposed users count to include external senders of inbound email even when no content was detected. Exposed user count will no longer include these users after the 3.167 release to avoid confusion. EU (Feb 27, 2024) US (Feb 29, 2024).

Customers can request through support that exposed users should include the external senders of received email.

Exposed users will continue to count outbound email destined for external recipients.

The exposed user count is cumulative and can be reset by contacting support.