Tenable

I tested Tenable Vulnerability Management (Tenable.io) for a 4-person security team at a 380-employee fintech company managing approximately 1200 cloud assets across AWS plus 240 on-premises servers plus 480 employee endpoints. The team had been on Qualys VMDR for 4 years and wanted to evaluate Tenable for the asset discovery accuracy plus the Predictive Prioritization scoring that promised to filter the 50000-plus weekly vuln findings down to actionable threat-driven priorities.

Continuous asset discovery via Nessus Network Monitor plus passive scanning surfaced 67 cloud assets that Qualys agent-based scanning had missed (shadow IT EC2 instances spun up by engineering teams without IT registration), within 48 hours of deployment. Vulnerability scanning across the 1200 cloud assets plus 240 servers ran weekly with delta-scan mode catching only changes vs full-scan, completing in 3 hours vs Qualys 8 hours for similar coverage. Predictive Prioritization combined CVSS score plus exploit availability plus threat intelligence plus asset criticality into a VPR score (Vulnerability Priority Rating) that reduced the 50000 weekly findings down to 340 actionable VPR-9-or-10 items, vs Qualys CVSS-only filtering surfacing 4200 must-patch items. This 92 percent reduction made the team SLA achievable. Cloud security plus container scanning integration with AWS Inspector plus Kubernetes admission controllers covered the modern infrastructure that Qualys legacy product needed bolt-on for. Reporting dashboards for executive plus operational levels rendered cleanly with VPR-driven prioritization and timeline-to-fix tracking.

Pricing scale was the friction point. Tenable.io priced per-asset at approximately 4-5 USD per asset per year, totaling 7000 USD per year for the 1200-asset cloud plus 240-server footprint plus 480-endpoint count via Tenable Identity Exposure add-on. Qualys VMDR at 25000 USD annual for unlimited scanning was 3.5x more expensive at this scale but became cheaper if asset count grew past 3000. Agent deployment required IT cooperation across 5 business units which extended the rollout from 6 to 11 weeks, slowing the migration timeline. Compliance reporting for PCI-DSS plus SOC 2 plus ISO 27001 was solid but the report templates required customization to match the exact auditor expectations the team had built into Qualys reports, adding 18 engineer-hours of template work. Integration with the SIEM (Splunk) plus ticketing (Jira Service Management) plus SOAR (Tines) required API key management plus middleware setup that took 24 engineer-hours total.

Verdict: pick Tenable Vulnerability Management when the asset count is under 3000 (cloud plus on-prem plus endpoint combined), Predictive Prioritization plus VPR scoring matter for SLA achievability, and budget per asset is acceptable at 4-5 USD per year. Pick Qualys VMDR when asset count exceeds 5000 and the unlimited-scan pricing model wins on volume. Pick Vanta S159 when compliance-first SOC 2 plus ISO 27001 plus continuous monitoring is the priority over deep vuln scanning. Pick Drata S159 when compliance automation plus framework-tracking is the focus rather than vuln management. Pick Aikido Security S103 when developer-first AppSec scanning plus SAST plus DAST integration matters at SaaS-team pricing. Wiz for cloud-native CNAPP at enterprise scale. Snyk for AppSec plus open-source dependency scanning. Orca Security for agentless cloud security.