Orca Security vs Tenable Nessus comparison

Orca Security and Tenable are both solutions in the Vulnerability Management category. Orca Security is ranked #17 with an average rating of 8.6, while Tenable is ranked #2 with an average rating of 8.6. Orca Security holds a 2.9% mindshare in VM, compared to Tenable’s 5.2% mindshare. Additionally, 100% of Orca Security users are willing to recommend the solution, compared to 98% of Tenable users who would recommend it.

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Executive SummaryUpdated on Oct 9, 2024

Tenable Nessus and Orca Security compete in the cybersecurity tools category. Orca Security seems to have the upper hand due to its agentless architecture, cloud focus, and rapid support.

Features: Tenable Nessus offers extensive vulnerability scanning, predictive prioritization, and an integration ability that supports risk management across environments. Orca Security's SideScanning technology allows agentless data collection, ranking and prioritizing vulnerabilities, and providing detailed cloud-level visibility.

Room for Improvement: Tenable Nessus could improve in reporting customization, intuitive interfaces, and reducing false positives. Orca Security could expand its on-premise integration and visualization capabilities, automatic remediation features, and enhance communication on updates.

Ease of Deployment and Customer Service: Tenable Nessus is mostly deployed on-premises, and feedback on technical support is mixed. Orca Security is deployed in the cloud with minimal setup and is praised for ease of use and quick support response.

Pricing and ROI: Tenable Nessus is competitively priced for smaller organizations and presents a strong ROI through its management capabilities. Orca Security is generally more expensive but justifies cost with its feature suite and value in reducing the need for multiple tools.

To learn more, read our detailed Orca Security vs. Tenable Nessus Report (Updated: December 2025).

Buyer's Guide

Orca Security vs. Tenable Nessus

December 2025

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Zafran Security

Mindshare comparison

As of January 2026, in the Vulnerability Management category, the mindshare of Zafran Security is 1.1%, up from 0.2% compared to the previous year. The mindshare of Orca Security is 2.9%, down from 4.5% compared to the previous year. The mindshare of Tenable Nessus is 5.2%, down from 10.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Vulnerability Management Market Share Distribution
Product	Market Share (%)
Tenable Nessus	5.2%
Orca Security	2.9%
Zafran Security	1.1%
Other	90.8%

Vulnerability Management

Featured Reviews

Reviewer6233

Works at a healthcare company with 10,001+ employees

Has become an indispensable tool in our cybersecurity arsenal

While Zafran Security is already a powerful tool, there are areas where it could be further improved to provide even greater value. One key area for enhancement is the searching capabilities within its vulnerabilities module. By incorporating the ability to create Boolean searches, users would gain the ability to apply more complex filters and customize their search criteria. This would greatly enhance the precision and efficiency with which security teams can identify and prioritize vulnerabilities. Having such tailored search capabilities would save time and resources by narrowing down vast lists of vulnerabilities to those that meet specific parameters relevant to our unique risk environment. Additionally, integrating more robust reporting and visualization tools would be advantageous. Enhanced dashboards that offer customizable visual representations of risk configurations and threat landscapes would facilitate better communication with stakeholders, making it easier to explain vulnerabilities and the rationale behind certain security measures. This would also aid in demonstrating the improvements and value derived from existing security investments to leadership and non-technical team members.

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Evgeny Shulga

CTO /Director at OPLIUM

Cloud security has improved visibility and automated deep risk investigations across clients

Identifying areas in Orca Security that have room for improvement is challenging, as there are multiple considerations including price, customization, AI, UI, and factors that could make it better or easier to use. I must consult with someone in the field because I cannot provide this information at this time since I am not operating the solution directly. What would make it a ten for me as an integrator is difficult to determine. I believe they need more time developing this solution, which means they need to be more comprehensive and extended in their approach. I think this represents the opinion of the majority.

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MohammedJaffir

Founder at Cipheroot

Has enabled me to reduce false positives and perform deep credential auditing with seamless integrations

I mostly use the configuration audit feature for the audit configuration as a scan policy, and I will use it for credential audit, which helps me scan credentials access such as local administrator or root access, performing a deeper and more accurate check of local configuration settings and file systems, making it a highly recommended feature. Regarding integration capabilities, we can integrate Tenable Nessus with SIM tools such as Splunk, IBM QRadar, and Azure Sentinel, as well as with ticketing systems such as ServiceNow, Jira, and Slack. There is no complexity as it is very easy to integrate everything. In terms of the reporting feature, while vulnerability scanning can throw some false positives, Tenable Nessus has very few, achieving a reduction of 75% to 80% false positives with manual analysis needed. We can generate standard Nessus reports that typically include host summaries and vulnerabilities by host and plugin, alongside solutions and remediation recommendations. The main benefits I get from Tenable Nessus are complete asset inventory and comprehensive attack surface management, allowing us to prioritize vulnerabilities based on risk, focusing on true risk and threat path analysis.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"We saw benefits from Zafran Security almost immediately after deploying it."

"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."

"Zafran is an excellent tool."

"With Zafran Security, it integrates with your security controls, allowing you to take that risk score and reduce it based on the controls in place or increase the risk based on different factors, such as if the issue is internet reachable or if there's an exploit in the wild."

"We are able to see the real risk of a vulnerability on our environment with our security tools."

"Zafran has become an indispensable tool in our cybersecurity arsenal."

"The reporting and automated remediation capabilities are valuable to me. They're real game-changers."

"The visibility Orca provides into my environment is at the highest level... When I dropped them into the environment, from the very get-go I had more insight into the risks in my environment than I had had during the entire two and a half years I had been here."

"The GUI features are very good. Threat intelligence is also very good."

"One of the valuable features of Orca Security is its design and options that allow flexible filtering and user-friendly visualization."

"With its Cloud Security Posture Management capability, we have the ability to read across all of our cloud-based environments, which includes AWS and Azure. We have visibility into those environments. Seeing all vulnerabilities and configurations is really powerful for us, but ultimately, the ability to use the API to query across the fleet to understand what is the current state, what is the patch level, which ones are potentially exposed for a new CVE that just came out is even more valuable. It allows us to gather really specific intelligence through simple queries."

"The initial setup is very easy."

"Orca Security has patented technologies. It's an agentless solution, so you don't need to install an agent. Instead, it contacts your account provider and fetches metadata, eliminating the need for snapshots or reserved space to copy client infrastructure."

"There are so many valuable features that I could list, but one that I appreciate is the PCI DSS compliance report."

More Orca Security pros

"The most valuable feature is the breadth of vulnerabilities that it finds. It's able to find across a lot of different platforms and operating systems. It's also able to combine local testing with network-based testing."

"We looked at Tenable, Qualys and Rapid7. We found Tenable was the best of all three."

"I like the fact that it was not expensive. I like that it's user-friendly."

"The best features of Tenable Nessus include its compatibility with other applications such as SIEM and other apps, allowing Tenable Nessus to work smoothly with them."

"It is easy to deploy and easy to use. Its reporting is good. From this reporting, you can see the pain point in your network, which makes it easy to fix them. It is easy to understand the reports and export them."

"A valuable feature of the solution is that it is easy to understand."

"It is a mature tool."

"It provides multiple recommendations towards the remedy of vulnerabilities."

More Tenable Nessus pros

Cons

"Initially, we were somewhat concerned about the scalability of Zafran due to our large asset count and the substantial amount of information we needed to process."

"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."

"I think the ability to have some enhanced reporting capabilities is something they can improve on, as they have good reports but we have asked for some specific reporting enhancements."

"I believe they need more time developing this solution, which means they need to be more comprehensive and extended in their approach."

"I think Orca could give me more alerts. It could give me a dashboard with all the specific types of alerts I want to see for the day. It should just be one click."

"The documentation for Orca Security could be improved."

"The presentation of the data in the dashboard is a little bit chaotic."

"As with all software, the user interface can always be made simpler to use. It would be helpful for people with very little knowledge, like somebody sitting behind the SOC, to allow them to be able to drill down into things a little bit easier than it is currently."

"The interface can be a bit cranky and sometimes takes a lot of time to load."

"A notable limitation with Orca Security is its scanning feature. The automatic scan only runs every 24 hours, and if an alert is remediated within an hour, it still remains until the next scheduled scan."

"I would like to see better customization options for security frameworks and better integration with reporting tools like Power BI or Grafana dashboards."

More Orca Security cons

"The accuracy of the vulnerability assessment is not up to par yet, as false alarms and false positives occur often."

"I would like to see more on the automation side."

"Tenable Nessus could improve reporting and information sharing. It would be helpful if we could share the reports and have a little bit better flexibility in the reporting of the data."

"It would be nice for the professional module to include some of the reports available in the expert module."

"The user interface of Tenable Nessus feels outdated and could be more user-friendly."

"The reports are okay, but the interface is a bit difficult to navigate in some cases."

"The professional version is not very scalable."

"They have added a new Tenable Nessus Expert. That is their new product, which caters to the cloud and everything else. I am assuming that the new features and product enhancements are based on that tool set, but we haven't reviewed it yet."

More Tenable Nessus cons

Pricing and Cost Advice

Information not available

"It is the cost of the visibility that you get. When you really sit down and think about what do you need to do to secure an environment with a low impact on the business, and you take a look out into the world, I think this tool is well justified around cost."

"Overall, the pricing is reasonable and the discounts have been acceptable."

"Orca Security charges are based on cloud workloads. So, it's based on workloads. If we look at one feature, it might be expensive."

"Orca is very competitive when compared to the alternatives and is not the most expensive in the market, that's for sure."

"Orca Security is cheaper compared to other solutions in the same space."

"While it's competitive with Palo Alto Prisma, I think Orca's list price is very high. I would advise Orca to lower it because, at that price, I might consider alternatives like Wiz, which also offers agentless services."

"The pricing depends on how many assets you have running in your cloud and how many environments you have. If you have a dev environment, test environment, and a production environment then it's really important that you have coverage for all of them."

"We have a total of 25 licenses for this solution. The solution is on a pay-and-you-use model."

More Orca Security pricing and cost advice

"I would like to see better discounts."

"Its price is high for Libya. The companies here in Libya don't have the awareness of and a good budget for cybersecurity services. If you want them to go for a product, you need to provide something different. This differentiation is related to the price. They should give about 40% to 45% discount per person on the current cost."

"Nessus is affordable, but its licensing model could be improved with more flexibility for adding assets."

"The price of Tenable Nessus is too expensive for each service center."

"The price of Tenable Nessus could improve, it is expensive."

"The price is high for the solution. There are free tools with similar functionality available. The solution cost approximately $3,500."

"The solution has free options."

"Nessus Manager is not an expensive product. It has its limitations, but the pricing reflects that. We have a yearly subscription."

More Tenable Nessus pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

Computer Software Company

Outsourcing Company

Computer Software Company

13%

Financial Services Firm

13%

Manufacturing Company

10%

Healthcare Company

Financial Services Firm

10%

Government

10%

Manufacturing Company

10%

Computer Software Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	8
Large Enterprise	6

By reviewers
Company Size	Count
Small Business	39
Midsize Enterprise	19
Large Enterprise	35

Questions from the Community

What is your experience regarding pricing and costs for Zafran Security?

Since we stood Zafran Security up in our private cloud, we handle the maintenance on our side. As we opted not to use...

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What needs improvement with Zafran Security?

In terms of areas for improvement, Zafran Security is doing a really great job as a new and emerging company. Oftenti...

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What is your primary use case for Zafran Security?

My use cases for Zafran Security revolve around two primary areas. One is around vulnerability management and priorit...

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What do you like most about Orca Security?

It's for protection. It's an agentless tool. We don't need to install anything at a customer's premises. We can just ...

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What needs improvement with Orca Security?

I experienced some problems with custom tags in Orca Security where I tried to separate the environment for business ...

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What is your primary use case for Orca Security?

We wanted to understand our cloud environment better, so we had a demo of Orca Security and then signed a deal to acc...

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How would you choose between Rapid7 InsightVM and Tenable Nessus?

You have full visibility across cloud, network, virtual, and containerized infrastructures with Rapid7 Insight VM. Yo...

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What's the difference between Tenable Nessus and Tenable.io Vulnerability Management?

Tenable Nessus is a vulnerability assessment solution that is both easy to deploy and easy to manage. The design of ...

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What do you like most about Tenable Nessus?

We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to addre...

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Comparisons

Wiz Code vs Zafran Security

Compared 24% of the time

Vulcan Cyber vs Zafran Security

Compared 10% of the time

Tenable Vulnerability Management vs Zafran Security

Compared 10% of the time

Nucleus vs Zafran Security

Compared 8% of the time

Wiz vs Zafran Security

Compared 4% of the time

More Zafran Security Competitors

Wiz vs Orca Security

Compared 22% of the time

Upwind vs Orca Security

Compared 7% of the time

Microsoft Defender for Cloud vs Orca Security

Compared 6% of the time

Prisma Cloud by Palo Alto Networks vs Orca Security

Compared 4% of the time

SentinelOne Singularity Cloud Security vs Orca Security

Compared 3% of the time

More Orca Security Competitors

Qualys VMDR vs Tenable Nessus

Compared 11% of the time

Rapid7 InsightVM vs Tenable Nessus

Compared 10% of the time

Microsoft Defender Vulnerability Management vs Tenable Nessus

Compared 7% of the time

Tenable Security Center vs Tenable Nessus

Compared 6% of the time

Amazon Inspector vs Tenable Nessus

Compared 5% of the time

More Tenable Nessus Competitors

Product Reports

Buyer's Guide

Zafran Security

January 2026

Download Zafran Security product report

Buyer's Guide

Orca Security

January 2026

Download Orca Security product report

Buyer's Guide

Tenable Nessus

January 2026

Download Tenable Nessus product report

Overview

Zafran Security integrates with existing security tools to identify and mitigate vulnerabilities effectively, proving that most critical vulnerabilities are not exploitable, optimizing threat management.

Zafran Security introduces an innovative operating model for managing security threats and vulnerabilities. By leveraging the threat exposure management platform, it pinpoints and prioritizes exploitable vulnerabilities, reducing risk through immediate remediation. This platform enhances your hybrid cloud security by normalizing vulnerability signals and integrating specific IT context data, such as CVE runtime presence and internet asset reachability, into its analysis. No longer reliant on patch windows, Zafran Security allows you to manage risks actively.

What are the key features of Zafran Security?

Threat Exposure Management: Utilizes existing tools to prioritize vulnerabilities and manage threats.
Integrative Analysis: Combines security data with IT context for precise vulnerability management.
Real-time Risk Reduction: Enables immediate risk management without waiting for patches.
Hybrid Cloud Compatibility: Functions across diverse cloud environments for comprehensive security.

What benefits can users expect from Zafran Security?

Improved Security: Enhances protection by efficiently identifying and mitigating risks.
Cost Efficiency: Reduces unnecessary patching expenses by confirming non-exploitable vulnerabilities.
Time Savings: Frees developers to focus on root causes by handling immediate threats.
Comprehensive Insight: Offers a holistic view of security threats and vulnerabilities.

In industries where security is paramount, such as finance and healthcare, Zafran Security provides invaluable protection by ensuring that only exploitable vulnerabilities are addressed. It allows entities to maintain robust security measures while allocating resources efficiently, fitting seamlessly into existing security strategies.

Zafran Security

Orca Security provides comprehensive security management with agentless visibility and SideScanning technology, ensuring efficient threat detection without performance impact.

Orca Security offers agentless visibility across multi-cloud environments, streamlining security management with features like SideScanning technology and centralized security tools. It focuses on automation, vulnerability management, and compliance checks, enhancing a company's security posture with real-time alerts and integrated threat detection. Its intuitive interface prioritizes critical issues, making it suitable for managing DevSecOps processes efficiently.

What are the key features of Orca Security?

Agentless Visibility: Gain comprehensive insights into cloud environments without deploying agents.
SideScanning Technology: Detect threats and vulnerabilities efficiently across platforms.
Comprehensive Security Management: Centralizes security across AWS, GCP, and Azure with minimal setup effort.
CIEM Feature: Enhances security posture with integrated identity and access management.
Real-Time Alerts: Provide immediate awareness of security threats and vulnerabilities.
Automation and Compliance: Streamline processes with automated vulnerability management and compliance checks.

What benefits and ROI should companies look for in Orca Security?

Centralized Management: Simplifies security operations by consolidating tools across cloud environments.
Improved Security Posture: Reduces alerts and manages threats effectively with detailed insights.
Efficient Threat Detection: Enhances response capabilities with integrated threat detection and real-time alerts.
Easy Deployment and Setup: Facilitates quick implementation without complex configurations.
Enhanced Integration: Supports seamless integration with existing security frameworks and processes.

Companies in industries such as finance, healthcare, and technology leverage Orca Security for cloud security posture management, ensuring compliance with standards and securing applications and databases. Its agentless approach provides comprehensive visibility across AWS, GCP, and Azure, enhancing risk assessment and vulnerability management without impacting asset performance.

Orca Security

Tenable Nessus provides an efficient vulnerability management system with swift deployment and comprehensive scanning capabilities, making it an ideal choice for organizations seeking to enhance their security posture through effective threat detection and mitigation strategies.

Renowned for its top-tier vulnerability detection, Tenable Nessus offers a robust platform that integrates effortlessly across systems, enhancing threat management through automation, real-time monitoring, and customizable scanning options. Its broad asset coverage, including network devices and applications, coupled with ease of deployment, positions it as a go-to option for risk assessment and compliance. Organizations value its extensive reporting features and database, although they suggest enhancements in reporting formats and false positive detection. A more intuitive interface, improved cloud support, and competitive pricing models are sought after to cater to evolving enterprise needs.

What are the key features of Tenable Nessus?

Comprehensive Vulnerability Detection: Identifies security gaps across systems and platforms.
Remedy Recommendations: Provides actionable insights for vulnerability fixes.
Predictive Prioritization: Helps in focusing on critical vulnerabilities first.
Seamless Integration: Compatible with diverse platforms for cohesive threat management.
Automation Capabilities: Streamlines routine scans and reports.

What benefits and ROI should users look for?

Fast Setup: Quick deployment that saves time and resources.
Cost-Effective: Affordable pricing supports budget-conscious cyber strategies.
Real-Time Monitoring: Offers continuous oversight of system health.
Extensive Reports: Detailed insights enhance decision-making processes.

In industries such as finance, healthcare, and tech, Tenable Nessus is implemented for scanning internal and external networks, identifying risks, and ensuring data protection compliance. Organizations conduct regular scans to detect security vulnerabilities in servers and databases, leveraging its capabilities to strengthen their security frameworks while managing cloud infrastructures and enterprise networks efficiently.

Tenable

Sample Customers

Information Not Available

BeyondTrust, Postman, Digital Turbine, Solarisbank, Lemonade, C6 Bank, Docebo, Vercel, and Vivino

Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University

Buyer's Guide

Orca Security vs. Tenable Nessus

December 2025

Free Report: Orca Security vs. Tenable Nessus

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