Northern Trail Outfitters has the Case object set to private.

In Salesforce, a dashboard’s running user determines which data is displayed to anyone viewing the dashboard. If a dashboard is configured with a "Static" running user (e.g., a Support Manager who has "View All" permissions), every user who views that dashboard will see the manager's level of data, regardless of their own personal sharing permissions. This bypasses the Organization-Wide Default (OWD) of "Private" for the Case object. When the support manager observes that reps can see all cases on a group dashboard, it is almost certainly because the dashboard is "running" as a user with high-level access. To correct this and ensure users only see data they are entitled to, the Platform Administrator should convert it into a Dynamic Dashboard. A dynamic dashboard is set to "Run as the logged-in user," meaning the data reflected in the components will automatically filter based on the individual viewer's specific sharing rules and record ownership. This ensures that the dashboard remains a useful tool for the team while strictly adhering to the company's data privacy and security requirements.