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AttackIQ vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 22, 2026

Review summaries and opinions

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

ROI

Sentiment score
4.9
Qualys TotalCloud enhances efficiency, reduces costs by 30-40%, and increases ROI by 10-20%, significantly saving time and resources.
Sentiment score
4.5
AttackIQ improved operational efficiency by enhancing security validation, reducing manual efforts, and increasing detection accuracy and alert quality.
Sentiment score
3.0
Tenable Nessus boosts security by enhancing threat visibility, reducing vulnerabilities, saving costs, and achieving high user satisfaction.
It has saved about 90% of our time.
Senior Consultant at a consultancy with 10,001+ employees
TotalCloud has generated overall savings of 30 to 40 percent across various departments.
Security Manager at a consultancy with 10,001+ employees
CallStream helps us integrate and automate tasks.
Senior Security Consultant at CyberNxt Solutions LLP
We have seen a massive return on investment with AttackIQ, specifically from a resource perspective and time spent on findings due to the fact that the accuracy of the reporting or the accuracy of the findings from AttackIQ was brilliant.
Solutions Sales Specialist at a outsourcing company with 1,001-5,000 employees
 

Customer Service

Sentiment score
6.9
Qualys TotalCloud's customer support is praised for expertise and responsiveness but occasionally faces response delays and inefficiencies.
Sentiment score
7.5
<p>AttackIQ support is responsive and knowledgeable, aiding users with BAS workflows and MITRE ATT&amp;CK, though improvements are suggested.</p>
Sentiment score
3.9
Tenable Nessus support is praised for responsiveness and efficiency, with mixed feedback on response times and depth for advanced queries.
They are helpful, respond to my queries, and can answer any question.
Developer at a consultancy with 10,001+ employees
Qualys's tech support is highly responsive, providing multiple ways to interact with them.
Service Manager, Security Operations at CDA IT SOLUTIONS
Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA.
Works at a consultancy with 10,001+ employees
The support team generally responsive, technically knowledgeable, and helpful during both onboarding and operational phases.
Security Consultant at Deloitte
The customer support for AttackIQ is quite quick to resolve issues.
Software Development Analyst at a tech vendor with 10,001+ employees
The customer support for AttackIQ is pretty quick.
DevOps at a marketing services firm with 51-200 employees
We received support within one to three hours.
CIO at a insurance company with 201-500 employees
Whenever any issue arises, we contact the support, and they are always there for us.
Information security engineer at Cyberisk
The technical support is good yet could improve in terms of response time.
SOC Engineer at a outsourcing company with 10,001+ employees
 

Scalability Issues

Sentiment score
7.3
Qualys TotalCloud excels in scalability but may need skilled management, adaptable for varying environments and large-scale deployments.
Sentiment score
7.1
AttackIQ excels in handling workloads, offering centralized visibility and scalability when integrated with logging, SIEM, and monitoring systems.
Sentiment score
5.2
Tenable Nessus is scalable and flexible for most organizations but may face limitations with very large enterprises.
We started our organization about nine months back. We started with about 30 users, and we now have more than 100 users.
CIO at a venture capital & private equity firm with 11-50 employees
Our organization currently uses it to manage over 1200 web applications.
Analyst, Information Security at Infosys
It is absolutely scalable, and I would rate its scalability as nine out of ten.
retired at a consultancy with 10,001+ employees
It can handle increasing workloads and more complex simulations as my needs grow without any problem.
Software Development Analyst at a tech vendor with 10,001+ employees
AttackIQ scales well for enterprise-level security validation and continuous testing use cases.
Security Consultant at Deloitte
AttackIQ is quite scalable as long as you understand what you want to do with it and where you want to go.
Solutions Sales Specialist at a outsourcing company with 1,001-5,000 employees
Whether managing 50 servers today or 500 tomorrow, performance or capacity are not hindered.
SOC Engineer at a outsourcing company with 10,001+ employees
Tenable Nessus is definitely scalable, especially for license formats designed for scalability.
Security Center Coordinator at a comms service provider with 1-10 employees
 

Stability Issues

Sentiment score
8.3
Qualys TotalCloud is praised for stability, boasting 99.9% uptime with minimal downtime and quickly resolved minor bugs.
Sentiment score
7.9
AttackIQ is highly stable and reliable, with no downtime issues, ideal for continuous security validation and assessments.
Sentiment score
5.8
Tenable Nessus is praised for stability and reliability, with high user satisfaction despite minor setup and update issues.
Overall, the support provided has been excellent.
Analyst, Information Security at Infosys
It is a stable solution, which is why we chose it.
CIO at a venture capital & private equity firm with 11-50 employees
Continuous monitoring is crucial to ensure system stability and avoid vulnerabilities or threats.
Developer at a consultancy with 10,001+ employees
We have not encountered any issues with missing network items or errors in API and webhook interactions.
SOC Engineer at a outsourcing company with 10,001+ employees
The stability of Tenable Nessus is extraordinary.
Founder at Cipheroot Cybersecurity Solutions
 

Room For Improvement

Users recommend enhancing compliance, UI, integration, and reporting, improving security features, and optimizing pricing and navigation for Qualys TotalCloud.
AttackIQ needs improved onboarding, tool integrations, user-friendly features, and simplified workflows to enhance value and user experience.
Tenable Nessus requires enhanced reporting, better integration, modern UI, faster scans, accurate detection, and comprehensive IT asset coverage.
Ideally, the scanner should automatically detect and scan all subdomains, even if not explicitly defined, ensuring comprehensive vulnerability assessment.
Analyst, Information Security at Infosys
Ideally, updates should be more immediate, enabling quicker implementation of solutions.
Project Lead at Persistent Systems
Our goal is to integrate all these functions into Qualys, creating a single dashboard for comprehensive security monitoring and management.
Senior Information Security Engineer at a consultancy with 10,001+ employees
One area for improvement is the initial configuration complexity, which is very complex in the initial stage to configure the whole thing and integrate with the SOC, presenting a learning curve for organizations that are new to adversary emulation or continuous security validation.
Security Consultant at Deloitte
AttackIQ works best when a SOC already has a process for acting on findings.
Solutions Sales Specialist at a outsourcing company with 1,001-5,000 employees
I would appreciate even deeper integrations with security tools and more automated remediation recommendations to streamline follow-up actions.
SOC L2 | Incident Responder at a financial services firm with 501-1,000 employees
This is Tenable's property. They want to sell Tenable Security Center, and they closed all the API capability for Tenable Nessus Professional.
Co-Founder at RSU Consultancy
An AI feature that helps them discover options without requiring them to deep dive into all features or guides them through advisory functions would be beneficial.
Freelancer And CEO at a tech vendor with 1-10 employees
The documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional.
SOC Engineer at a outsourcing company with 10,001+ employees
 

Setup Cost

Qualys TotalCloud is costly but offers value and integration, ideal for enterprises despite higher pricing.
Tenable Nessus is valued for affordability and flexibility, though costs vary by organization size, IP count, and region.
Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive.
Senior Manager at a financial services firm with 10,001+ employees
Pricing is managed by our finance team; however, Qualys TotalCloud offers cost-effective licensing flexibility.
IT Manager at a consultancy with 10,001+ employees
Qualys TotalCloud is expensive, but it offers a premier solution with no headaches.
Vice President at Inspira Enterprise
My experience with pricing, setup cost, and licensing for AttackIQ is that since I was using the free version, I did not purchase it initially and was only utilizing the platform, doing lab simulations that were free in that environment.
Software Development Analyst at a tech vendor with 10,001+ employees
The pricing for Tenable Nessus has increased significantly, tripling over the last few years.
Security Center Coordinator at a comms service provider with 1-10 employees
Tenable Nessus's pricing is adequate if it is fully utilized.
SOC Engineer at a outsourcing company with 10,001+ employees
When we compare it to other solutions, it is more difficult for us to negotiate the price for Tenable Nessus than to negotiate the price with Rapid7.
Freelancer And CEO at a tech vendor with 1-10 employees
 

Valuable Features

Qualys TotalCloud enhances risk management with misconfiguration detection, TruRisk integration, continuous monitoring, automation, and seamless integration for IaaS and SaaS.
AttackIQ provides continuous security testing, enhances visibility, and integrates with tools to improve detection and threat defense.
Tenable Nessus excels in vulnerability detection, user-friendliness, scalability, real-time monitoring, integration, compliance reporting, and remediation advice.
This view of risk helps reduce the work we would have to do to combine multiple sources to prioritize risk.
Works at a consultancy with 10,001+ employees
It will help cybersecurity professionals monitor the cloud and find vulnerabilities.
Developer at a consultancy with 10,001+ employees
We are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs.
Senior Consultant at a consultancy with 10,001+ employees
AttackIQ allows us to resolve issues much quicker because these issues come in categories, enabling us to prioritize them and fix the emergency issues first.
DevOps at a marketing services firm with 51-200 employees
The continuous validation of security controls through repeatable attack simulations is a massive advantage for me.
Solutions Sales Specialist at a outsourcing company with 1,001-5,000 employees
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.
Founder at Cipheroot Cybersecurity Solutions
The scanning and reporting features are the most valuable aspects of Tenable Nessus.
SOC Engineer at a outsourcing company with 10,001+ employees
The most valuable features of Tenable Nessus include its ease of access and quick usability.
Security Center Coordinator at a comms service provider with 1-10 employees
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
11th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
43
Ranking in other categories
Container Security (12th), Cloud Workload Protection Platforms (CWPP) (8th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
AttackIQ
Ranking in Vulnerability Management
35th
Average Rating
8.4
Reviews Sentiment
6.4
Number of Reviews
7
Ranking in other categories
Breach and Attack Simulation (BAS) (4th), Attack Surface Management (ASM) (10th), Continuous Threat Exposure Management (CTEM) (4th)
Tenable Nessus
Ranking in Vulnerability Management
3rd
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
88
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.2%, up from 1.0% compared to the previous year. The mindshare of AttackIQ is 0.7%, up from 0.2% compared to the previous year. The mindshare of Tenable Nessus is 3.7%, down from 8.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Nessus3.7%
Qualys TotalCloud1.2%
AttackIQ0.7%
Other94.4%
Vulnerability Management
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
Charl Pinches - PeerSpot reviewer
Solutions Sales Specialist at a outsourcing company with 1,001-5,000 employees
Continuous validation has transformed our SOC and now proves control effectiveness with evidence
Running in our SOC, it moves the conversation from assumptions and dashboards to measurable proof, which is exactly what makes AttackIQ valuable in day-to-day security operations. The breach and attack simulation that supports testing, prevention, detection, and response is a key feature for me, as is the ongoing exposure management, rather than a one-time security assessment. AttackIQ's reporting helps translate technical findings into actionable remediation steps, which are easy to understand. The continuous validation of security controls through repeatable attack simulations is a massive advantage for me. Once properly implemented, AttackIQ becomes a valuable part of a continuous validation program. The one feature I rely on the most from AttackIQ is specifically the continuous validation of security controls through repeatable attack simulations. From the reporting that stands out, once you have the report, the translation from a technical finding perspective and how they align with actionable remediation steps is easy to understand, which helps significantly. From a SOC perspective, AttackIQ running in our SOC is a solid enterprise-grade platform delivering genuine operational value. The biggest strength for me is the realism, its alignment with all the compliance situations we might have, and the ability to continuously validate control effectiveness. By doing that, we can continuously provide feedback to our customers to ensure they are running the best of breed for their security posture and environment. AttackIQ is best viewed as a tool that helps a SOC move from assumption-based security to evidence-based security, while providing reporting that can easily be communicated in layman's terms to your customer base. It is most effective for teams that want to prove their controls work, identify gaps early, and continuously improve rather than just rely on periodic testing alone.
MohammedJaffir - PeerSpot reviewer
Founder at Cipheroot Cybersecurity Solutions
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.
report
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
12%
Outsourcing Company
11%
Financial Services Firm
10%
Financial Services Firm
17%
Manufacturing Company
11%
Construction Company
8%
Government
7%
Financial Services Firm
10%
Manufacturing Company
10%
Government
9%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise31
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise2
Large Enterprise5
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise19
Large Enterprise35
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
To be totally honest, I do not have any best features because I have had a bad experience using this tool, especially...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is vulnerability management and exposure management. I use this tool to evalua...
What needs improvement with AttackIQ?
There is a learning curve at the beginning, especially for teams that are quite new to a BAS or continuous validation...
What is your primary use case for AttackIQ?
The key features that we mainly depend on are the continuous validation of security controls through repeatable attac...
What advice do you have for others considering AttackIQ?
The accuracy of AttackIQ is very good and the reliable output is straightforward and easy to understand. The advice I...
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...
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 ...
What is your experience regarding pricing and costs for Tenable Nessus?
Based on my experience, the pricing for Tenable Nessus is somewhat higher, but customers still want to pay for it, so...
 

Also Known As

Qualys TotalCloud with FlexScan
DeepSurface
No data available
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about AttackIQ vs. Tenable Nessus and other solutions. Updated: August 2026.
909,948 professionals have used our research since 2012.