A cybersecurity assessment system is provided for monitoring, assessing, and addressing the cybersecurity status of a target network. The cybersecurity assessment system can analyze the scan data and determine a degree to which the current status of the target network satisfies a particular cybersecurity readiness standard, and how the status changes over time. The cybersecurity assessment system can also transform large amounts of vulnerability scan data into efficient representations for use in providing interactive presentations of the vulnerabilities detected on the target network. The cybersecurity assessment system can also provide information regarding cybersecurity events in substantially real time.