Qualys is a cloud-delivered platform that discovers and inventories hardware, software, digital certificates, and internet-facing assets across IT environments. It uses both agent-based and network-based scanning to continuously assess systems, cloud environments, and containerized workloads for vulnerabilities, misconfigurations, and missing patches. The platform evaluates system configurations against security benchmarks, monitors for unauthorized file changes, and scans web applications for vulnerabilities such as injection and cross-site scripting. It prioritizes findings based on threat intelligence, links them to specific remediation actions, and integrates with ticketing systems to track them through their lifecycle, while also providing capabilities to orchestrate patch deployment and respond to threats on endpoints.