Intruder alternative
Intruder is an online vulnerability scanner designed for small teams, focused on what is exposed to the Internet. TechWatchAlert starts from the inside: agent, IT asset tools, repositories; it also checks the external surface of your domains, and follows remediation through to evidence.
What Intruder is, exactly
Intruder, a British vendor, presents itself as "always-on" exposure management for small teams: external and internal scans, attack surface discovery, web applications, cloud. The vendor offers a limited free plan and a 14-day trial; the prices of its plans are available on its website.
The real differences
| Criterion | TechWatchAlert | Intruder |
|---|---|---|
| External surface scanning | Lightweight check of your verified domains (Team plan: 10 domains) | Yes |
| Web application scanning | No | Yes |
| Internal inventory by agent | Windows, Linux, macOS | Depending on the plan |
| IT asset tools and scanners read through their APIs | Yes | Not disclosed |
| Patch management | In rings (Team plan) | No |
| NIS2 and ISO 27001 reports | Yes (Team plan) | Not disclosed |
| Public prices | Free €0 (5 machines), Pro €590 excl. VAT/year (25 machines), Team €1,790 excl. VAT/year (100 machines), then €2.50 excl. VAT per machine per month | On the vendor's website |
| Interface languages | Seven languages, including English | English |
| Data hosting | France | Not disclosed |
The two tools overlap on the external surface; they diverge on everything that happens behind the firewall.
What Intruder does better than we do
External scanning. Ports, services, web applications, continuously: Intruder goes further than our lightweight check, which performs neither application testing nor exploitation attempts.
Simplicity to get started. One domain, one scan, one report: nothing to install.
What we do differently
We see the inside. Endpoints and servers through the agent, IT asset tools (Intune, GLPI, RMM), repositories and containers: most exploited vulnerabilities are exploited after initial access, on machines that are not exposed.
We fix and prove: deadlines based on real-world exploitation, updates in rings, NIS2 and ISO 27001 reports.
Who it's for, in practice
A SaaS vendor with everything exposed. Intruder meets the need directly.
An SMB or mid-sized company with a fleet of endpoints and servers. TechWatchAlert, with the external surface of your domains as a bonus.
Both? Possible: Intruder for external testing, TechWatchAlert for the fleet and the evidence.
Method and verification date
Facts checked on on the vendors' public pages, with no privileged access and no real-world testing of their product. The positioning and plans come from Intruder's public pages; we do not repeat third-party price estimates. An error, a change of offer? Report it through our contact page: we correct the row and re-date the page.