Softwr

Cybersecurity · head to head

Dahua Technology vs Nessus

Dahua Technology logo

Dahua Technology

Cybersecurity

Large Chinese video platform that US federal buyers and federal contractors cannot lawfully use

From
On request
Rated
-
Full reviewWebsite
Nessus logo

Nessus

Cybersecurity

The most trusted vulnerability assessment solution

From
$4790/year
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Dahua Technology dahua is named under NDAA Section 889 and listed on the FCC Covered List, so the US federal government cannot procure its video surveillance equipment and cannot contract with entities that use it, which disqualifies most organisations with any federal contracting ambition regardless of how good the software is.; Nessus nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • They diverge on capability: Dahua Technology covers DSS Pro V8, Nessus covers Vulnerability scanning.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Dahua Technology and Nessus actually diverge.

Attributes where Dahua Technology and Nessus differ
AttributeDahua TechnologyNessus
Starting priceOn request$4790/year
Pricing modelquotesubscription
PlatformsWindows, Linux, Web, iOS, AndroidDesktop, Api
FoundedUnknown2002

Identical on both: free tier (No), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Dahua Technology

  • DSS Pro V8
  • Distributed architecture
  • DeepXplore
  • Access management
  • Parking Lot application
  • Intelligent Analysis
  • Maintenance Center
  • DMSS mobile app

Only in Nessus

  • Vulnerability scanning
  • Configuration auditing
  • Malware detection
  • Web application scanning
  • Cloud scanning
  • Compliance checks
  • Patch auditing
  • Pre-built policies

What people use each for

The jobs each tool is most often brought in to do.

Dahua Technology

  • A private industrial site outside the United States with no federal or defence supply chain exposurenot Nessus
  • A large-channel-count deployment in a market where Section 889 and the FCC Covered List do not applynot Nessus
  • An existing Dahua estate authorised before February 2023 being maintained rather than expandednot Nessus
  • A buyer who has taken written legal advice confirming no federal contracting exposure now or in futurenot Nessus

Nessus

  • Vulnerability scanning for individual practitionersnot Dahua Technology
  • Enterprise vulnerability managementnot Dahua Technology
  • Web application security assessmentsnot Dahua Technology

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Dahua Technology

  • Dahua is named under NDAA Section 889 and listed on the FCC Covered List, so the US federal government cannot procure its video surveillance equipment and cannot contract with entities that use it, which disqualifies most organisations with any federal contracting ambition regardless of how good the software is.
  • Rules adopted by the FCC in late 2025 gave the Commission authority to revoke equipment authorisations already granted, so equipment that is legal to sell today may not be tomorrow and a multi-year rollout carries regulatory risk the vendor cannot indemnify.
  • Sourcing has degraded sharply: new equipment, replacement parts and system expansions are increasingly difficult to obtain through compliant US distribution and major retailers have removed listings, so an installed estate faces a spares problem long before end of life.
  • Any organisation that later wins or bids for federal work, or supplies a federal contractor, must audit and replace Dahua equipment across all its facilities under Section 889(a)(1)(B), turning a cheap installation into an expensive forced rip-out.
  • Beyond procurement law, insurers, auditors and enterprise customers increasingly treat Chinese-manufactured surveillance as a supply chain finding in its own right, so the reputational cost lands even where the legal prohibition does not.

Nessus

  • Nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • Multi year terms are the only discount route, at $9,330.95 for two years and $13,637.54 for three
  • It is a single user scanner, so team workflows mean migrating to another Tenable product
  • Tenable One vulnerability management is priced separately, starting at $3,500 a year for 100 assets

Pricing, plan by plan

Dahua Technology

On request
  • DSS Pro V8$undefined/year
    • Base video licence covering 16 channels, required before adding more
    • Additional video channel licences purchased per channel
    • Access control, video intercom and parking licensed separately

Nessus

$4790/year
  • Nessus Professional$4790/year
    • 1 year license
    • Best for individual security professionals
  • Nessus Professional 2-Year$9330.95/2 years
    • 2 year license with discounted rate vs. annual
  • Nessus Professional 3-Year$13637.54/3 years
    • 3 year license with discounted rate vs. annual
  • Nessus Expert$6790/year
    • 1 year license
    • Enhanced capabilities vs. Professional

Which should you pick?

Choose Dahua Technology if

  • You need dss pro v8.
  • You work on Windows, Linux, Web, iOS, Android.
  • You also want distributed architecture.
Dahua Technology review

Choose Nessus if

  • You need vulnerability scanning.
  • You work on Desktop, Api.
  • You also want configuration auditing.
Nessus review

Questions people ask

Is Dahua Technology or Nessus better?
Neither clearly leads. Dahua Technology starts at On request and Nessus at $4790/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dahua Technology or Nessus?
Dahua Technology starts at On request and Nessus at $4790/year.
Does Dahua Technology or Nessus run on more platforms?
Dahua Technology runs on Windows, Linux, Web, iOS, Android. Nessus runs on Desktop, Api.
What is Dahua Technology best used for?
Dahua Technology is most often used for a private industrial site outside the united states with no federal or defence supply chain exposure, a large-channel-count deployment in a market where section 889 and the fcc covered list do not apply, an existing dahua estate authorised before february 2023 being maintained rather than expanded, a buyer who has taken written legal advice confirming no federal contracting exposure now or in future. Of those, a private industrial site outside the united states with no federal or defence supply chain exposure and a large-channel-count deployment in a market where section 889 and the fcc covered list do not apply are not what Nessus is typically brought in for.
What can Dahua Technology do that Nessus cannot?
Dahua Technology covers DSS Pro V8, Distributed architecture, DeepXplore, Access management. Nessus covers Vulnerability scanning, Configuration auditing, Malware detection, Web application scanning.

Answered from the vendors’ own pages

Dahua Technology: Can a US federal agency buy Dahua?

No. Dahua is explicitly named under NDAA Section 889, so federal agencies cannot procure or obtain its video surveillance equipment, including OEM-rebadged versions.

Nessus: What is the cheapest Nessus option?

Nessus Professional starts at $4,790 per year for a 1-year license. Multi-year commitments offer discounts, with 2-year licenses at $9,330.95 and 3-year licenses at $13,637.54.

Source
Dahua Technology: Can a private US company use Dahua cameras?

Section 889 does not directly regulate private companies without federal contracts, and existing installations are not required to be removed. But the moment the company bids for federal work or supplies a federal contractor, Section 889(a)(1)(B) makes the installed equipment a problem.

Nessus: What is the difference between Nessus Professional and Expert?

Nessus Expert costs $6,790 per year for a 1-year license (compared to $4,790 for Professional) and includes enhanced capabilities. Multi-year rates are available at discounted prices.

Source
Dahua Technology: Is existing Dahua equipment banned?

No. The prohibition on new authorisations does not apply retroactively to equipment authorised before February 2023, and legacy systems may remain in use. New purchases and expansions are the restricted part.

Nessus: Does Nessus offer optional support or training?

Yes, Nessus offers add-on services: Advanced Support at $400/year provides 24x365 access to phone, email, community, and chat support. On-Demand Training costs $275/year for Fundamentals course access or $385/year for both Fundamentals and Advanced courses.

Source
Dahua Technology: Is Dahua available outside the United States?

Yes, and it remains one of the two largest manufacturers globally, though a number of other countries have introduced their own restrictions on government use.

Share

Related pages

More on Dahua Technology

More on Nessus

Keep looking

Other head to heads