A cybersecurity assessment is a structured review of an environment, organization, or system to identify risk, gaps, existing controls, and overall readiness. It can include interviews, configuration checks, policy review, asset inventory, vulnerability scanning, and validation of incident response or recovery capabilities.
Assessments matter because security is not proven by tools alone; it must also be measured, documented, and compared against a baseline or requirement. In practice, attackers exploit the weaknesses these reviews are meant to find, such as missing patches, weak access control, poor logging, or untested backups. Defenders use assessments to prioritize fixes, support compliance, and show regulators or partners that controls are not only installed but working. In critical infrastructure, a cybersecurity assessment often informs how operators prove cyber readiness and maintain evidence for audits, reporting, and oversight.