Tenable Nessus
Network vulnerability scanner that checks hosts for missing patches, weak settings and known flaws, with a free edition.
- Free plan or free edition
Open source network vulnerability scanner with a community feed of checks, plus commercial appliances and support.
Not enough info yet on works with Microsoft 365, works with Google Workspace, managed option with human analysts, multi-tenant console for MSPs. Check the tool's own site.
Listing written by AntivirusAir, checked 2026-11-04. Report a correction or request removal. Back to vulnerability scanning.