CyberScore vs Tenable Nessus
Nessus is the long-time standard for enterprise vulnerability scanning of internal networks. We aim at a different buyer: the SMB / scale-up that needs the EXTERNAL perimeter monitored without the Nessus price tag or operational overhead. Different jobs to be done; pick the one that matches yours.
Last reviewed June 2026. Nessus pricing and feature references reflect the public Tenable website at the time of writing — Tenable.io / Tenable.sc are quote-led and may have changed.
Side by side
| Capability | CyberScore | Nessus |
|---|---|---|
| Entry price (paid) | $99 / month (Starter) or $49 one-time | Nessus Professional starts around $4,236 / year per the Tenable public store. Nessus Expert higher. Tenable.io / Tenable.sc are quote-driven and start in the $10k+ range. |
| Primary scope | External attack surface — public DNS, TLS, headers, ports, OSINT, leaked secrets on the open internet. | Internal + external vulnerability scanning. Credentialed scans of OS / DB / network gear. Hundreds of thousands of plugins. |
| Who runs it | Set-and-forget for the CISO or CTO. Weekly digest. You don't open the tool unless a score drops. | Security engineer or IT admin. Nessus is a power tool — defining scopes, picking plugin sets, tuning false positives is real work. |
| Credentialed scanning (OS / DB / agents) | No — by design. We don't sit inside the customer environment. | Yes — Nessus authenticates to Linux/Windows/network gear and inspects from inside. That is its core differentiator. |
| Continuous monitoring cadence | Weekly or daily on Pro / Always-On. Email digest + Slack alerts on score drops + findings-delta. | Schedules per asset group. Reporting via email / SIEM connectors / Tenable.io dashboards. |
| Compliance tracker + audit CSV | Yes — every "Mark fixed / Won't fix / Snoozed" decision exportable as one CSV with operator + timestamp. | Granular asset + finding tagging with vulnerability lifecycle management. CSV / Nessus DB export. |
| Public score badge | Yes — opt-in /badge/<domain> with OG image for LinkedIn. | No. |
| Reporting depth | Multi-page PDF + AI Security Brief + findings-delta on rescans. Designed for a CISO + DPO. | Industry-standard PDF / HTML / Nessus DB reports. Built for vulnerability-management workflow operators. |
| Plugin / detection count | Surface-level by design — ~12 scanner modules + 73 cloud bucket providers + 22 secret patterns + Wayback + threat-intel feeds. | Tens of thousands of NASL plugins maintained by Tenable Research. Updated daily. |
| Hosting + data residency | Hosted in France — single Postgres database per tenant. | Nessus Pro runs on customer infrastructure (desktop / VM). Tenable.io is cloud, US-based by default; EU residency on enterprise tiers. |
| Free preview without an account | Yes — one anonymous sample scan per IP. | Nessus Essentials (free, 16 IPs) requires registration. |
When CyberScore is the right call
- You don't have a security engineer dedicated to running Nessus scans every week — you need something that just runs.
- Your real risk is what an attacker sees from the outside (exposed admin panels, leaked keys, expired certs) — not unpatched internal Linux boxes.
- Your compliance buyer (ISO 27001 auditor, SOC 2 consultant) wants evidence of continuous monitoring with timestamps + decisions, not a 200- page CVSS export.
- Your budget is closer to $99-$399 / month than $5k-$20k / year.
When Nessus is the right call
- You need credentialed scanning of internal Linux / Windows / network appliances. That's 80% of Nessus's value and we don't do it.
- You have hundreds of internal assets and need a CVSS-driven vulnerability-management workflow with asset tagging, remediation SLAs, and Tenable.io dashboards.
- You're a regulated enterprise where "Nessus-certified" is in the procurement checklist.
- Your team already invests in PCI / HIPAA / FedRAMP-style certifications and needs vendor- recognised scan output.
Frequently asked questions
Can CyberScore replace Nessus?+
Only for the external attack surface. Nessus is enterprise-grade vulnerability scanning built around internal networks, credentialed scans and agent fleets — that is roughly 80% of its value, and CyberScore does not do it. For the public-facing perimeter (DNS, TLS, headers, OSINT, leaked secrets), CyberScore is a focused, cheaper fit.
Nessus vs CyberScore for compliance?+
If your auditor expects Nessus-certified scan output, or you need a CVSS-driven vulnerability-management workflow with asset tagging and remediation SLAs, Nessus is the right tool. If your compliance buyer (ISO 27001, SOC 2) wants evidence of continuous monitoring with timestamps and decisions, CyberScore ships a downloadable CSV of every Mark fixed / Won't fix / Snoozed decision with operator email and timestamp.
Does CyberScore scan internal networks like Nessus?+
No, by design. CyberScore does not sit inside the customer environment and does not perform credentialed scans of Linux, Windows or network gear. That is Nessus territory. CyberScore stays on the open internet — what an attacker would see from outside.
Why is Nessus so much more expensive than CyberScore?+
Nessus Professional starts around $4,236/year per the Tenable public store, and Tenable.io / Tenable.sc are quote-driven starting in the $10k+ range. CyberScore Starter is $99/month. The gap reflects scope: Nessus ships tens of thousands of NASL plugins maintained by Tenable Research; CyberScore is surface-level by design with around 12 scanner modules.
Can I run CyberScore without a security engineer on staff?+
Yes — that is the target user. CyberScore is set-and-forget for a CISO or CTO, with a weekly digest. Nessus is a power tool: defining scopes, picking plugin sets and tuning false positives is real work that needs a dedicated operator.
Where is CyberScore hosted compared to Nessus?+
CyberScore is hosted in France with a single Postgres database per tenant. Nessus Pro runs on customer infrastructure (desktop or VM). Tenable.io is cloud, US-based by default, with EU residency on enterprise tiers.
See it for yourself
Run a free sample scan on your own domain — no account, no credit card. See exactly what we surface from the public internet, then decide.
Got a comparison correction? Email patrick@cybersco.re and we'll update the page.