What Claude (Anthropic) with web search answered for vulnerability scanning tools (small businesses) on 2026-10-26

Claude (Anthropic) with web search claude-opus-5 asked 2026-10-26

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 a small business that wants something that just works.
2. Cloud recommended
   $149/mo (Essential, external-only), $299/mo Cloud, $499/mo Pro.
3. Tenable Nessus recommended
   Tenable Nessus Essentials - Free for up to 16 IPs.
4. Tenable Nessus Essentials recommended
   Tenable Nessus Essentials - Free for up to 16 IPs.
5. Nessus recommended
   Tenable Nessus Essentials - Free for up to 16 IPs.
6. Nessus Essentials recommended
   Tenable Nessus Essentials - Free for up to 16 IPs.
7. 16 IPs recommended
   Tenable Nessus Essentials - Free for up to 16 IPs.
8. Nessus Professional recommended
   Nessus Professional (unlimited IPs, compliance templates, better reporting) jumps to roughly $3,000-4,800/year depending on term - a big step, and usually where small businesses should switch to Intruder or an MSP instead.
9. Professional recommended
   Nessus Professional (unlimited IPs, compliance templates, better reporting) jumps to roughly $3,000-4,800/year depending on term - a big step, and usually where small businesses should switch to Intruder or an MSP instead.
10. Qualys recommended
    Qualys Community Edition / Qualys VMDR - Worth a look if you may grow into compliance work (PCI, SOC 2).
11. Qualys Community Edition recommended
    Qualys Community Edition / Qualys VMDR - Worth a look if you may grow into compliance work (PCI, SOC 2).
12. Community Edition recommended
    Qualys Community Edition / Qualys VMDR - Worth a look if you may grow into compliance work (PCI, SOC 2).
13. Qualys VMDR recommended
    Qualys Community Edition / Qualys VMDR - Worth a look if you may grow into compliance work (PCI, SOC 2).
14. OpenVAS / Greenbone recommended
    OpenVAS / Greenbone Community Edition - Free and open-source, genuinely capable.
15. OpenVAS / Greenbone Community Edition recommended
    OpenVAS / Greenbone Community Edition - Free and open-source, genuinely capable.
16. Astra Security recommended
    Astra Security - SaaS scanning plus human-assisted pentests and compliance-ready reports.
17. Snyk recommended
    Snyk - Different category, but include it if you ship software.
18. Malwarebytes recommended
    Also note that generic "best for small business" roundups often rank endpoint-protection products like Malwarebytes, Sophos, and ESET in this category - those are antivirus/EDM, not vulnerability scanners, and they don't substitute for one.

Sources the engine cited

Is one of these your site? Its page lists every recorded answer that cited it, with the questions, the pages and the dates, and carries the alert for the next citation.

The answer, as recorded

# Vulnerability scanners for small businesses Here's what I'd actually recommend, in rough order: **1. Intruder** - My default recommendation for a small business that wants something that just works. It's built for exactly this market (~59% of its reviewers are small businesses), does continuous external attack-surface scanning, and emails you when something new appears rather than making you babysit a console. **$149/mo** (Essential, external-only), $299/mo Cloud, $499/mo Pro. Easiest setup of anything on this list. **2. Tenable Nessus Essentials** - **Free for up to 16 IPs.** If your whole footprint is a handful of servers and a firewall, this is the best scan engine in the industry at zero cost. Nessus Professional (unlimited IPs, compliance templates, better reporting) jumps to roughly **$3,000-4,800/year** depending on term - a big step, and usually where small businesses should switch to Intruder or an MSP instead. **3. Qualys Community Edition / Qualys VMDR** - Worth a look if you may grow into compliance work (PCI, SOC 2). Cloud-based with no appliance to run, strong asset inventory. Pricing is sales-quote only, which is itself a signal about who they're built for. **4. OpenVAS / Greenbone Community Edition** - Free and open-source, genuinely capable. The catch is you maintain it. Only pick this if you have someone technical who *enjoys* this work - otherwise the scanner rots and you get false confidence. **5. Astra Security** - SaaS scanning plus human-assisted pentests and compliance-ready reports. Good middle ground if a customer or insurer is asking you for a pentest report and you don't have in-house security staff. **6. Snyk** - Different category, but include it if you ship software. It scans your dependencies and code for known CVEs with auto-fix PRs. Free tier is usable for a small dev team. Pair it with one of the above; it doesn't cover your network. ## What I'd actually do If you have fewer than ~16 public IPs and some technical ability: start with **Nessus Essentials** (free) this week. If you want it handled and have budget: **Intruder at $149/mo** is the lowest-friction real answer. If you write software: add **Snyk's free tier** regardless. One caveat worth naming: a scanner finds problems, it doesn't fix them. Budget time for patching, or the subscription is wasted money. Also note that generic "best for small business" roundups often rank endpoint-protection products like Malwarebytes, Sophos, and ESET in this category - those are antivirus/EDM, not vulnerability scanners, and they don't substitute for one. Sources: - [G2 - Vulnerability Scanner, Small Business](https://www.g2.com/categories/vulnerability-scanner/small-business) - [Astra - Vulnerability Scanning for SMBs](https://www.getastra.com/blog/dast/vulnerability-scanning-for-smbs/) - [Intruder - Top Vulnerability Scanning Tools](https://www.intruder.io/blog/the-top-vulnerability-scanning-tools) - [eSecurity Planet - Best SMB Vulnerability Scanning Tools](https://www.esecurityplanet.com/networks/smb-vulnerability-scanner/) - [GetApp - Intruder vs Nessus](https://www.getapp.com/security-software/a/intruder/compare/nessus/) - [Beagle Security - Intruder pricing](https://beaglesecurity.com/blog/article/intruder-pricing.html) - [Ciphers Security - Tenable Nessus pricing 2026](https://cipherssecurity.com/tenable-nessus-pricing-2026-editions-costs/) - [ethicalhacking.ai - Nessus Professional pricing](https://ethicalhacking.ai/pricing/nessus-professional-pricing)

Near this answer

The same question, recorded on other dates: 2026-10-24, 2026-10-21, 2026-10-19, 2026-10-18, 2026-10-16, 2026-10-14, 2026-10-11, 2026-10-09, 2026-10-06, 2026-10-03, 2026-10-01.

vulnerability scanning tools, asked for other audiences: remote teams (asked 2026-10-26).

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.