# What Claude (Anthropic) with web search answered for vulnerability scanning tools (small businesses) on 2026-09-23

## In short

On 2026-09-23, Claude (Anthropic) with web search was asked "best vulnerability scanning tools for small businesses". It named 13 brands; the first six, in order, were Intruder, Tenable Nessus, Tenable Nessus Professional, Nessus Professional, OpenVAS / Greenbone and OpenVAS / Greenbone Community Edition.

| Fact | Value |
| --- | --- |
| Question | best vulnerability scanning tools for small businesses |
| Asked on | 2026-09-23 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 13 |
| Sources cited | 5 |
| Audience | small businesses |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-23 |

Page: https://bikoosh.com/answers/s/vulnerability-scanning-tools-small-businesses-2026-09-23
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-23 through Claude (Anthropic) with web search (model claude-opus-5).

> Here's what I'd actually recommend, roughly in the order I'd try them:
> 
> **1. Intruder** - My default pick for most small businesses. It's SaaS, so there's no scanner to host, and it's built around continuous external scanning of whatever you have exposed to the internet (websites, cloud VMs, APIs). It reduces noise aggressively, which matters when nobody on staff is a full-time security person. Free tier for asset discovery, paid plans start low; internal/authenticated scanning requires the Pro tier. 14-day trial. ([intruder.io](https://www.intruder.io/blog/the-top-vulnerability-scanning-tools), [blueheadline.com](https://blueheadline.com/cybersecurity/best-vulnerability-scanners-small-business/))
> 
> **2. Tenable Nessus Professional** - The pick if you have someone reasonably technical who wants the best raw scan engine and depth of plugin coverage. Unlimited assessments, CVSS v4 scoring, and configuration/compliance audits (useful if you're chasing PCI or cyber insurance questionnaires). The catch is the price for one person's use - roughly $4-5k/year for Professional, more for Expert, plus optional support - and it's a tool, not a program: it finds things, you do the rest. ([esecur

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Intruder | recommended |
| 2 | Tenable Nessus | recommended |
| 3 | Tenable Nessus Professional | recommended |
| 4 | Nessus Professional | recommended |
| 5 | OpenVAS / Greenbone | recommended |
| 6 | OpenVAS / Greenbone Community Edition | recommended |
| 7 | Rapid7 InsightVM | recommended |
| 8 | Qualys | mentioned |
| 9 | AWS | mentioned |
| 10 | Azure | mentioned |
| 11 | Microsoft Defender | mentioned |
| 12 | Defender | mentioned |
| 13 | NinjaOne | mentioned |

## Sources the engine cited

- https://www.intruder.io/blog/the-top-vulnerability-scanning-tools (vendor)
- https://blueheadline.com/cybersecurity/best-vulnerability-scanners-small-business/ (other)
- https://www.esecurityplanet.com/networks/vulnerability-scanning-tools/ (other)
- https://cybersecuritypricing.org/tenable-vs-qualys-pricing-and-cost-comparison/ (other)
- https://www.ninjaone.com/blog/vulnerability-scanning-tools/ (vendor)

The question page: https://bikoosh.com/answers/q/vulnerability-scanning-tools/small-businesses

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.