This question comes from an idea of wanting to be notified when malware/viruses have been detected.
The current feature that is available today is the ability to schedule a report to run once a day to show data from the current day, which will execute around 1am UTC time, and then have this report emailed to certain recipients.
An example report can be "Trend of Threats" that will show content blocked because of virus being detected or blocked because of a security threat, i.e. a site categorized as Spyware Effects. Reports can be customized or created for the type of information that is required.