Click the analytics icon on the domain you’d like check.
Click the 'Security' tab. The default time frame is one week. You can click on the upper right corner to change the date, the system will store the data for up to 30 days. On the upper left corner, the 'Threat Statistics' section will show the threat map during the selected timeframe. You can see the source of the attack and the time curve right below.
Click on 'Threat Log' to see more information about the attack.