Guardian360 vs Tenable
The US market leader in vulnerability management, with deep scanning and broad container and cloud coverage for large enterprises.
What Tenable is good at
Tenable (Nessus, Tenable.io) is one of the most established names in vulnerability management. Its scanning depth, plugin library and container and cloud coverage are mature and enterprise-grade, and it is a strong fit for large security teams that run their own programme.
Side by side
How they compare
| Guardian360 | Tenable | |
|---|---|---|
| Origin & data residency | Netherlands, EU-only | US vendor (EU hosting available) |
| Delivery model | Partner-only | Direct + partner |
| Deployment | Agentless SaaS | Scanners + agents |
| Compliance coverage | 25+ frameworks, continuously mapped | Audit files; manual mapping |
| Intrusion detection | Built-in honeypots | Not included |
| Microsoft 365 insight | Included | No |
| Container & cloud scanning | Planned for 2026 | Yes |
| Smallest client | From 10 employees / IPs | Typically 100+ assets |
Based on publicly available information at the time of writing. Vendors evolve quickly — always verify the latest details with each provider.
When Tenable may fit better
A large enterprise with a dedicated security team, mature processes, and a real need for the deepest possible vulnerability coverage, including extensive container and cloud scanning today.
When Guardian360 fits better
An organisation that wants continuous scanning and 25+ compliance frameworks mapped in one place, with built-in intrusion detection and Microsoft 365 insight, delivered through a partner and hosted entirely in the EU, sized for teams from 10 employees up.
Common questions
Guardian360 vs Tenable, answered
Is Guardian360 an alternative to Tenable?
For most SMEs and the partners who serve them, yes. Guardian360 covers daily vulnerability scanning and adds compliance mapping, intrusion detection and Microsoft 365 insight in one EU-hosted, partner-delivered platform. Very large enterprises with deep container and cloud needs may still prefer Tenable’s scanning depth today.
What is the main difference?
Tenable is a best-in-class scanner you operate yourself. Guardian360 is a broader, partner-delivered platform that turns findings into compliance recommendations across 25+ frameworks, and keeps your data inside the EU.
See it on your own environment
Run a free Quickscan, start a trial, or talk to a partner. Guardian360 is delivered exclusively through our partners.