How to disable display of Network Threat Protection / Intrusion Prevention Notifications in Endpoint Protection for Macintosh
In SEP for Macintosh local client interface (unmanaged or managed), these notifications can be hidden by going to Settings->Network Threat Protection->"Display Network Threat Protection Notifications" and sliding switch to "Off"
A managed client can be configured through the SEPM Clients tab, select client group, Policies tab, Location-specific Settings. Click on "Client User Interface Control Settings". Choose to customize these settings and uncheck "Display Intrusion Prevention notifications" at bottom of the dialog window.
Macintosh OS X
SEP for Macintosh 12.1 RU4 or newer