Outlook: Show teammates' calendars in the left navigation pane

🚨 The Signal: Outlook now automatically displays teammates' calendars in the left navigation pane. This increases visibility of calendar data, potentially exposing availability and meeting patterns to a wider audience than intended.

The Impact

End users are affected by increased calendar visibility, posing a low risk of unintended information disclosure.

• End users: Calendar availability is more visible by default.
• Security teams: Review data handling policies for calendar information.

The Action

1. Educate users on calendar privacy settings and sharing options.
2. Review existing organizational policies regarding calendar sharing and visibility.
3. Communicate the change to users, highlighting personal privacy controls.

Domain: Exchange · Impact: low · Workload: Exchange Online