Cloud SWG contains a feature that allows you to suppress some information from the access logs, and thus reports.
To verify the status of this feature, in the Cloud SWG portal navigate to Account Configuration > Data Retention and Privacy and expand End User Privacy.
Under the default privacy settings, the following settings are available:
Cloud SWG
Oftentimes, suppression is required in certain countries or business sectors. Before changing the option, verify why these options were set.
If you have the authority, select Log all traffic normally (no suppression)
For more information check Suppress Personal Information From Access Logs.