Within the Portainer Business Edition UI you can view a log of all authentication actions. The log is read-only and cannot be edited.
Portainer also provides the ability to view detailed activity logs.
From the menu expand Logs and select Authentication.
If you want to export logs, filter by date range then click Export to CSV.
Authentication events are searchable and filterable, and the date and time, origin IP address, context, user and result are provided for each.