What Claude (Anthropic) with web search answered for vulnerability scanning tools (small businesses) on 2026-10-16

Claude (Anthropic) with web search claude-opus-5 asked 2026-10-16

Coverage: Claude (Anthropic) with web search. Other engines not included.

The question asked, verbatim: best vulnerability scanning tools for small businesses

Brands named, in the order the engine gave

1. Intruder recommended
   Intruder - My default recommendation for most small businesses.
2. G2 recommended
   Starts around $149/month, and it has the best ease-of-setup and support scores in its class (4.8/5 on G2, with the majority of reviews coming from small businesses).
3. Tenable Nessus recommended
   Tenable Nessus Professional - The industry standard for depth.
4. Tenable Nessus Professional recommended
   Tenable Nessus Professional - The industry standard for depth.
5. Nessus Professional recommended
   Tenable Nessus Professional - The industry standard for depth.
6. Professional recommended
   Tenable Nessus Professional - The industry standard for depth.
7. Greenbone OpenVAS recommended
   Greenbone OpenVAS (Community Edition) - The free option, and genuinely good.
8. OpenVAS recommended
   Greenbone OpenVAS (Community Edition) - The free option, and genuinely good.
9. Community Edition recommended
   Greenbone OpenVAS (Community Edition) - The free option, and genuinely good.
10. Pentest-Tools.com recommended
    Pentest-Tools.com - The nice middle ground if OpenVAS feels too raw but Nessus feels too heavy.
11. Astra Security recommended
    Astra Security - Worth a look if you want scanning plus human-assisted pentesting and compliance-ready reports (SOC 2, ISO, PCI) in one package.
12. Snyk recommended
    Snyk - Different category, but include it if you write or deploy code.
13. Qualys recommended
    Don't start with Qualys - it's a strong product but priced and designed for enterprises, and small teams tend to drown in it.

Sources the engine cited

The answer, as recorded

# Vulnerability scanners for small businesses Here's what I'd actually recommend, roughly in the order I'd try them: **1. Intruder** - My default recommendation for most small businesses. It's built for exactly your situation: continuous external scanning of your internet-facing stuff, automatic rescans when new CVEs drop, and reports you can hand to a client or auditor. Starts around **$149/month**, and it has the best ease-of-setup and support scores in its class (4.8/5 on G2, with the majority of reviews coming from small businesses). You don't need a security team to run it. **2. Tenable Nessus Professional** - The industry standard for depth. If you have an internal network with servers, workstations, and network gear to audit, nothing beats it for coverage and CVSS-based detail. The catch is price and effort: **~$4,790/year** per scanner, plus $400 if you want 24/7 support. It's a tool, not a service - it finds things and hands you a list. Worth it if someone on your team will actually work the findings. **3. Greenbone OpenVAS (Community Edition)** - The free option, and genuinely good. Over 160,000 vulnerability tests covering CVEs, misconfigurations, and default credentials. If you have technical staff and a limited internet footprint, this does most of what Nessus does for $0. The tradeoff is real though - ease-of-use scores around 7.7 vs. 9.5 for commercial tools, and community-only support. **4. Pentest-Tools.com** - The nice middle ground if OpenVAS feels too raw but Nessus feels too heavy. 4.8/5 rating, 67% of its users are small businesses, and it scores very well on both usability (9.5) and support (9.3). Good for on-demand external scans and quick client-facing reports. **5. Astra Security** - Worth a look if you want scanning *plus* human-assisted pentesting and compliance-ready reports (SOC 2, ISO, PCI) in one package. More of a managed service than a tool, which suits teams with nobody to assign this to. **6. Snyk** - Different category, but include it if you write or deploy code. It scans dependencies and containers, suggests auto-fixes, and drops into your CI. Doesn't replace a network scanner, it complements one. **Practical take:** if you only buy one thing, buy Intruder. If your budget is zero, run OpenVAS and commit to actually reviewing the output monthly. Don't start with Qualys - it's a strong product but priced and designed for enterprises, and small teams tend to drown in it. Sources: - [G2 - Vulnerability Scanners for Small Business](https://www.g2.com/categories/vulnerability-scanner/small-business) - [G2 - Qualys WAS vs Tenable Nessus vs Intruder](https://www.g2.com/compare/qualys-was-vs-tenable-nessus-vs-intruder) - [Tenable Nessus Pricing 2026: Editions & Costs](https://cipherssecurity.com/tenable-nessus-pricing-2026-editions-costs/) - [Astra - Vulnerability Scanning for SMBs](https://www.getastra.com/blog/dast/vulnerability-scanning-for-smbs/) - [eSecurity Planet - Best SMB Vulnerability Scanning Tools](https://www.esecurityplanet.com/networks/smb-vulnerability-scanner/) - [Greenbone - Enterprise Products Lead all Network Vulnerability Scanners](https://www.greenbone.net/en/blog/greenbone-enterprise-products-lead-all-network-vulnerability-scanners/) - [G2 - OpenVAS vs Pentest-Tools.com](https://www.g2.com/compare/openvas-vs-pentest-tools-com) - [Intruder - Top Vulnerability Scanning Tools](https://www.intruder.io/blog/the-top-vulnerability-scanning-tools)

Near this answer

The same question, recorded on other dates: 2026-10-14, 2026-10-11, 2026-10-09, 2026-10-06, 2026-10-03, 2026-10-01, 2026-09-29, 2026-09-27, 2026-09-25, 2026-09-23, 2026-09-21.

vulnerability scanning tools, asked for other audiences: remote teams (asked 2026-10-16).

Other categories with a recorded answer: backup and recovery software, cloud hosting providers, compliance automation software, data loss prevention software.

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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.