Tenable will send an activation code to the email address you provided.
Tenable provides several "no-cost" options depending on your specific use case: nessus license key free
| Feature | Nessus Essentials (Free) | Nessus Professional (Paid ~$2,990/year) | |---------|-------------------------|------------------------------------------| | IP Address Limit | 16 per activation code | Unlimited | | Plugin Updates | Delayed (30 days) | Real-time | | Compliance Audits | Not available | Full support (PCI DSS, HIPAA, CIS, etc.) | | Advanced Plugins | Basic coverage only | Full access (70,000+ vulnerabilities) | | Live Results | Manual rescan required | Automatic with each update | | Agent-Based Scanning | Not supported | Supported | | Virtual Appliance | No | Yes | | Technical Support | None | Included | | Multi-User Collaboration | No | Yes | | API Access | No | Yes | | PDF Reporting | Essentials Plus only | Included | Tenable will send an activation code to the
: Do not run a broad scan across an entire subnet. Instead, target individual, critical devices one by one (e.g., your local web server, NAS device, or router). You must provide a valid name and email address
You must provide a valid name and email address. Tenable sends the activation code directly to this email. You can use a standard consumer email (Gmail, Outlook) for the free tier. 3. Check Your Email