Open Source Alternative · Security

Replace Tenable Nessus with OpenVAS / Greenbone.

Open source vulnerability scanner. Full CVE database, authenticated scanning, compliance checks.

You're losing ~R36 000 to ~R180 000/year.

10-user estimate across 3 published tiers of Tenable Nessus.

Pricing approximated from vendor-advertised USD converted at current FX. Enterprise and negotiated pricing varies. Book a free audit for your exact number.

Tenable Nessus vs OpenVAS / Greenbone

Typical ZAR pricing across published tiers of Tenable Nessus. Your open source alternative pays once. Setup cost. Then it runs free.

Tenable Nessus · Nessus Professional
~R3 000/mo
≈ ~R36 000/year (10 users)

Flat rate

Tenable Nessus · Tenable.io (100 assets)
~R4 500/mo
≈ ~R54 000/year (10 users)

Flat rate

Tenable Nessus · Security Center
~R15 000/mo
≈ ~R180 000/year (10 users)

Flat rate

Your open source replacement
OpenVAS / Greenbone. R0/month.

Open source vulnerability scanner. Full CVE database, authenticated scanning, compliance checks.

The migration, handled.

Downloading free software isn't the job. Running it in production is. That's the part we do.

Data migration

Export everything from Tenable Nessus, transform, and import cleanly into OpenVAS / Greenbone. Nothing lost.

Parallel running

Old system stays live while the new one takes shape. Cutover only when you're ready.

Integration & SSO

Wire it into your existing email, auth, and payment stack. No isolated island.

Hardening & backups

POPIA-ready config, automated backups, monitoring, and patch management from day one.

Team training

Hands-on onboarding until your people are comfortable. Not a PDF they won't read.

Ongoing support

SLA-backed maintenance so you're not Googling error messages at 2am.

Three weeks from now, you could already have switched.

The audit is free. We'll give you a fixed-price migration quote, a timeline, and the risks, in writing. You decide from there.