Email is the only method for notifications as that is universally applicable and no other way of sending them makes sense.

In addition to email, text messages can be sent directly to one cell phone to alert the CISO who is then coordinating the work on the incident.

Leading ITSM systems can be connected to the Zero Trust Exchange using a NSS server, which will then connect to ITSM tools and forwards the alert.

In addition to email, notifications, based on Alert Rules, can be shared with leading ITSM or UCAAS tools over Webhooks.