What is running user in a dashboard?

Answer: Reports have only ‘Reports Folder’ to decide who can view the reports in that folder.

Explanation:
Dashboards have ‘Dashboard Folder’ as well as ‘Running User’ to decide who can view the
dashboards in that ‘Dashboard Folder’. Each dashboard has a
running user, whose security settings determine which data to
display in a dashboard. To select the running user for a
dashboard: 1.Edit a dashboard. 2.In the View dashboard as field,
enter a running user. Enter “*” to see all available