FortWatch
TenableThe Tenable alternative for teams that don’t run their own scanner
Managed, continuous external attack surface monitoring with AI triage — self-serve from $99/mo, with no scanner to deploy, tune, or interpret.
Tenable, built around the industry-standard Nessus engine, offers deep credentialed vulnerability scanning and exposure management at enterprise scale. It’s practitioner-grade — powerful in the hands of a security engineer who runs and tunes it.
FortWatch is managed, continuous external attack surface management for the team that doesn’t have that engineer. AI triages every finding in plain English, it’s self-serve and transparently priced, and there’s no scanner to operate.
FortWatch vs Tenable: pricing
Tenable is sold as a scanner you run (Nessus) or an enterprise platform priced per asset. FortWatch is managed, continuous, and transparently priced.
| FortWatch | Tenable | |
|---|---|---|
| Starting price | $99/mo — published, self-serve | Nessus Pro per seat; platform priced per asset / enterprise |
| Model | Managed SaaS, AI-triaged | A scanner you install, run, and tune |
| Who operates it | No security engineer needed | Practitioner runs and interprets it |
| Time to value | Minutes | Install, configure, tune |
Tenable pricing varies by product (Nessus vs Tenable.io / Tenable One) and asset count; confirm current terms with the vendor.
Should you choose FortWatch or Tenable?
Choose FortWatch if…
- You don’t have a security engineer to run and tune a scanner.
- You want managed, continuous external coverage with AI triage — not raw scanner output.
- You want transparent, self-serve pricing.
- You want results in plain English, not Nessus reports to interpret.
Choose Tenable if…
- You have a security engineer who runs and tunes Nessus.
- Deep credentialed, authenticated vulnerability scanning is your core need.
- You want Nessus’ industry-standard plugin and vulnerability coverage.
- You’re scaling Tenable’s exposure-management platform across a large estate.
Feature-by-feature comparison
Setup & access
| Feature | FortWatch | Tenable | Winner |
|---|---|---|---|
| Model | Managed, continuous, AI-triaged | A scanner you run and tune | FortWatch |
| Pricing | Transparent, self-serve from $99/mo | Per-asset / enterprise platform | FortWatch |
| Who operates it | No specialist required | Security practitioner | FortWatch |
| Time to first scan | Minutes | Install, configure, tune | FortWatch |
Scanning depth
| Feature | FortWatch | Tenable | Winner |
|---|---|---|---|
| Credentialed / authenticated VM | External edge coverage | Industry-standard depth (Nessus) | Tenable |
| Plugin / vulnerability coverage | Strong for external surface | Enormous — the market standard | Tenable |
External attack surface
| Feature | FortWatch | Tenable | Winner |
|---|---|---|---|
| Outside-in discovery & monitoring | Core focus | Exposure-management add-on | FortWatch |
| DNS / SSL / headers / files / brand | Dedicated scanners, included | VM-engine led | FortWatch |
AI & experience
| Feature | FortWatch | Tenable | Winner |
|---|---|---|---|
| AI triage on every finding | Default, every plan | Raw findings, analyst-interpreted | FortWatch |
| Plain-English fix guidance | On every finding | Practitioner-oriented | FortWatch |
Comparison based on publicly available information as of June 2026. Tenable is a trademark of its respective owner; this is an independent comparison.
Where Tenable is strong
Where Tenable is strong: Nessus is the industry-standard vulnerability scanner with enormous plugin and vulnerability coverage and deep credentialed scanning, and Tenable’s exposure-management platform scales to large enterprises. If you have a security engineer to run and tune it, Tenable’s scanning depth is best-in-class.
Built for the team Tenable prices out
No engineer to run a scanner
Tenable assumes a practitioner who operates and tunes Nessus. FortWatch is managed and continuous — nothing to run.
AI does the interpretation
Every finding is prioritised and explained in plain English, so a generalist can act without reading raw scanner output.
Self-serve, SMB pricing
Start at $99/mo with all scanners included — no per-asset platform contract.
Whole external surface
Ports, DNS, SSL, headers, files, subdomains, cloud, and brand monitoring — continuously, in one view.
Moving from Tenable takes minutes
Create your FortWatch account
Sign up at app.fortwatch.ai — no scanner to install.
Add your domains and IPs
Point FortWatch at your external assets — discovery and monitoring are automatic.
Get your first AI-triaged report
Prioritised findings in plain English within minutes — no Nessus output to interpret.
Don’t take our word for it — ask an AI
FortWatch is AI-first, so we’re happy to let one judge. Ask any assistant: “Is FortWatch a good Tenable alternative for a small team without a security engineer?”
FortWatch vs Tenable — FAQ
Is FortWatch a good Tenable / Nessus alternative for SMBs?
Yes, if you want managed, continuous external attack surface coverage without running a scanner yourself. Nessus is practitioner-grade and assumes a security engineer; FortWatch is self-serve from $99/mo with AI triage so a small team gets results without operating the tooling.
Does FortWatch match Nessus on scanning depth?
Nessus’ credentialed scanning depth and plugin coverage are its strength and FortWatch is honest about this: FortWatch focuses on outside-in external attack surface coverage with AI triage, not deep authenticated internal VM. If running Nessus-grade credentialed scans is your core need, Tenable leads there.
Is FortWatch easier to use than Tenable?
For a team without a security engineer, yes — FortWatch is managed and continuous with AI triage, whereas Tenable expects you to deploy, run, and interpret the scanner. That operational difference is the whole point of FortWatch.
Is FortWatch cheaper than Tenable?
FortWatch is self-serve from $99/mo with all scanners included. Tenable uses per-asset and enterprise platform pricing, so total cost is typically higher once operation is included.
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