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Cybersecurity · head to head

Kaspersky Total Security vs Tenable Nessus

Kaspersky Total Security logo

Kaspersky Total Security

Cybersecurity

Complete protection for your digital life

From
Free
Rated
-
Full reviewWebsite
Tenable Nessus logo

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kaspersky Total Security uS sales banned since June 2024 with support ending September 29, 2024; Tenable Nessus nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • They diverge on capability: Kaspersky Total Security covers Real-time protection, Tenable Nessus covers Network scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Kaspersky Total Security and Tenable Nessus actually diverge.

Attributes where Kaspersky Total Security and Tenable Nessus differ
AttributeKaspersky Total SecurityTenable Nessus
Pricing modelUnknownsubscription
PlatformsWindows, macOS, iOS, AndroidWindows, Linux, Macos, Cloud
Founded19972002

Identical on both: starting price (Free), free tier (Yes), 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 Kaspersky Total Security

  • Real-time protection
  • Ransomware protection
  • Safe Money
  • Privacy protection
  • Parental controls
  • Password manager
  • VPN
  • File encryption

Only in Tenable Nessus

  • Network scanning
  • Vulnerability detection
  • Configuration assessment
  • Malware detection
  • Compliance checking
  • Cloud security assessment
  • Mobile scanning
  • API access

Both cover

  • Cloud deployment

What people use each for

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

Kaspersky Total Security

  • Antivirusnot Tenable Nessus
  • Internet Securitynot Tenable Nessus
  • Parental Controlnot Tenable Nessus

Tenable Nessus

  • Vulnerability scanning of servers, network devices and web applicationsnot Kaspersky Total Security
  • Configuration and compliance auditing against hardening benchmarksnot Kaspersky Total Security
  • Point in time assessments by consultants and penetration testersnot Kaspersky Total Security

Where each one falls short

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

Kaspersky Total Security

  • US sales banned since June 2024 with support ending September 29, 2024
  • VPN limited to 200 MB per day and servers in only 24 countries
  • Password manager has privacy concerns with questionable terms and policies
  • VPN and password manager only included in Plus and Premium tiers, not in Standard
  • Occasionally flags legitimate files as false positives
  • Firewall leaves open ports on public networks

Tenable Nessus

  • Nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • Support beyond the base entitlement costs an extra $400 per year for Advanced Support with 24x365 phone and chat access
  • The on demand training course is a separate $275 purchase for a single person for one year
  • Multi year discounts require paying for two or three years up front

Pricing, plan by plan

Kaspersky Total Security

Free
  • FreeFree
    • Basic antivirus
    • No real-time protection
  • Standard$38.99/year
    • Antivirus
    • Firewall
    • Anti-phishing
  • Plus$52.99/year
    • Standard features
    • Password manager
    • VPN with limit
  • Premium$74.99/year
    • Plus features
    • Identity protection
    • Unlimited VPN

Tenable Nessus

Free
  • Nessus EssentialsFree
    • Up to 16 ips
    • Network scanning
    • Vulnerability assessment
  • Nessus Professional$2600/year
    • Unlimited targets
    • Enterprise features
    • Advanced analytics
  • Nessus Expert$5200/year
    • All Professional features
    • Cloud integration
    • Advanced reporting

Which should you pick?

Choose Kaspersky Total Security if

  • You need real-time protection.
  • You want to start without paying.
  • You work on Windows, macOS, iOS, Android.
  • You also want ransomware protection.
Kaspersky Total Security review

Choose Tenable Nessus if

  • You need network scanning.
  • You want to start without paying.
  • You work on Windows, Linux, Macos, Cloud.
  • You also want vulnerability detection.
Tenable Nessus review

Questions people ask

Is Kaspersky Total Security or Tenable Nessus better?
Neither clearly leads. Kaspersky Total Security starts at Free and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kaspersky Total Security or Tenable Nessus?
Kaspersky Total Security starts at Free and Tenable Nessus at Free.
Does Kaspersky Total Security or Tenable Nessus run on more platforms?
Kaspersky Total Security runs on Windows, macOS, iOS, Android. Tenable Nessus runs on Windows, Linux, Macos, Cloud.
Can I use Kaspersky Total Security for free?
Both have a free tier, so you can try either at no cost before committing.
What is Kaspersky Total Security best used for?
Kaspersky Total Security is most often used for antivirus, internet security, parental control. Of those, antivirus and internet security are not what Tenable Nessus is typically brought in for.
What can Kaspersky Total Security do that Tenable Nessus cannot?
Kaspersky Total Security covers Real-time protection, Ransomware protection, Safe Money, Privacy protection. Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection. Both handle Cloud deployment.

Answered from the vendors’ own pages

Kaspersky Total Security: What does Kaspersky Total Security include?

Kaspersky Total Security (Premium tier) includes antivirus, firewall, password manager, VPN with 200 MB daily limit, parental controls (Kaspersky Safe Kids), and anti-ransomware protection.

Source
Tenable Nessus: What are the three Nessus offerings?

Nessus Essentials is a free introductory offering for educators, students, and career starters, limited to 16 IPs for scanning. Nessus Professional is designed for consultants and SMBs, providing unlimited IT scans across any location. Nessus Expert is the premium offering extending Professional with web application scanning, infrastructure-as-code scanning, and external attack surface assessment up to 5 domains.

Source
Kaspersky Total Security: How much does Kaspersky Total Security cost?

Kaspersky Standard costs $38.99/year for 3 devices. Plus tier is $52.99/year for 5 devices. Premium is $74.99/year for 10 devices. Multi-year discounts available.

Source
Tenable Nessus: What OS platforms does Nessus support?

Nessus runs on Debian/Kali Linux, Fedora, FreeBSD, Mac OS X, Red Hat/CentOS, SUSE Linux, Ubuntu, and various Windows versions including Server 2008, 2012, and Windows 7-10.

Source
Kaspersky Total Security: Is Kaspersky available in the United States?

No. The U.S. government banned Kaspersky software sales in June 2024, with support and software updates ceasing September 29, 2024, citing national security concerns regarding Russian government ties.

Source
Tenable Nessus: Can I use Nessus to scan third-party networks as a consultant?

Yes, Tenable permits you to use Nessus to scan third-party networks. Nessus Professional is ideal for consultants.

Source
Kaspersky Total Security: Does Kaspersky have parental controls?

Yes. Premium and Plus tiers include one year free access to Kaspersky Safe Kids parental controls app, which provides activity reports, app monitoring, usage limits, and geo-fencing with location tracking.

Source
Tenable Nessus: Can Nessus perform PCI external scanning?

Yes, you can use Nessus Professional to perform external network scans as required by the PCI DSS 11.2.2 requirement.

Source
Kaspersky Total Security: How much does the VPN provide?

Kaspersky's free VPN (Kaspersky Secure Connection) offers only 200 MB per day of traffic, limiting data usage. Full VPN is included in Plus and Premium plans but with limited servers in only 24 countries.

Source
Tenable Nessus: What additional features does Nessus Expert provide?

Web application scanning, which is dynamic application security testing (DAST) providing comprehensive visibility and insight into web application security issues; scanning code repositories for vulnerabilities; and assessing external attack surface with subdomain discovery.

Source
Tenable Nessus: What support options exist for Nessus Professional?

Standard Support includes software upgrades, patches, plugin access, and 24x7 support via chat and community portal. Advanced Support adds 24x7 phone access and committed SLAs: P1 less than 2 hours, P2 less than 4 hours, P3 less than 12 hours, P4 less than 24 hours.

Source
Tenable Nessus: How frequently are Nessus plugins updated?

Nessus plugins are updated daily, based on when vendors and security research sites publish new vulnerabilities.

Source
Tenable Nessus: How does licensing work in virtual machine environments?

Whether you are using Nessus in a physical or a virtual environment, the IP addresses or hosts that you are scanning from must be licensed.

Source
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