Nessus Expert

Nessus Expert is a next-generation vulnerability assessment and external attack surface management tool developed by Tenable to expand traditional vulnerability scanning into the external internet domain and cloud infrastructure code. Building upon the industry-standard Nessus scanning engine, Nessus Expert enables cybersecurity consultants, penetration testers, and IT administrators to assess traditional IT assets, discover unknown internet-facing domains, and audit Infrastructure as Code (IaC) templates for security misconfigurations before code is deployed to cloud environments.

The tool provides comprehensive assessment capabilities across three distinct domains: traditional network vulnerability scanning, external attack surface discovery, and pre-build cloud infrastructure security. Key capabilities include scanning up to 500 external internet domains for exposed assets and rogue subdomains, scanning Terraform, Ansible, CloudFormation, and Kubernetes manifests for security flaws (Terrascan engine), automated CVE detection backed by Tenable Research, and credentialed compliance auditing. By providing external attack surface visibility and shift-left cloud scanning within the familiar Nessus interface, Nessus Expert equips security professionals with broader visibility across expanding digital footprints.

Nessus Expert integrates with GitHub, GitLab, Bitbucket, Jenkins, Tenable Vulnerability Management, and CSV/HTML/PDF reporting engines. Primary use cases include discovering unknown external-facing enterprise assets, auditing cloud infrastructure templates before production deployment, performing penetration tests and compliance audits, and assessing hybrid IT environments for unpatched vulnerabilities. Nessus Expert delivers industry-benchmark vulnerability detection accuracy, external exposure discovery, and pre-build cloud security.