Checkmarx One vs Defensics Protocol Fuzzing comparison

The compared Checkmarx and Black Duck solutions aren't in the same category. Checkmarx is ranked #3 in AS , with an average rating of 8.3, and holds a 10.4% mindshare in the category. Black Duck is ranked #4 in FTT , and holds a 23.3% mindshare. Additionally, 87% of Checkmarx users are willing to recommend the solution, compared to 100% of Black Duck users who would recommend it.

Checkmarx One

Read 71 Checkmarx One reviews

18,550 Views
14,655 Comparison Views

87% willing to recommend

Defensics Protocol Fuzzing

Read 4 Defensics Protocol Fuzzing reviews

1,067 Views
117 Comparison Views

100% willing to recommend

Checkmarx One

Defensics Protocol Fuzzing

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between Checkmarx One and Defensics Protocol Fuzzing based on real PeerSpot user reviews.

Find out what your peers are saying about Sonar, Veracode, Checkmarx and others in Application Security Tools.

To learn more, read our detailed Application Security Tools Report (Updated: September 2025).

Buyer's Guide

Application Security Tools

September 2025

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Helped 868,759 peers since 2012

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

Checkmarx One

Average Rating

7.6

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Application Security Tools (3rd), Static Application Security Testing (SAST) (3rd), Vulnerability Management (23rd), Container Security (23rd), Static Code Analysis (3rd), API Security (6th), Dynamic Application Security Testing (DAST) (4th), DevSecOps (5th), Risk-Based Vulnerability Management (10th), Application Security Posture Management (ASPM) (3rd)

Defensics Protocol Fuzzing

Average Rating

8.6

Number of Reviews

Ranking in other categories

Fuzz Testing Tools (4th)

Mindshare comparison

While both are Quality Assurance solutions, they serve different purposes. Checkmarx One is designed for Application Security Tools and holds a mindshare of 10.4%, down 13.0% compared to last year.
Defensics Protocol Fuzzing, on the other hand, focuses on Fuzz Testing Tools, holds 23.3% mindshare, up 19.3% since last year.

Application Security Tools Market Share Distribution
Product	Market Share (%)
Checkmarx One	10.4%
SonarQube Server (formerly SonarQube)	20.5%
Veracode	7.7%
Other	61.4%

Application Security Tools

Fuzz Testing Tools Market Share Distribution
Product	Market Share (%)
Defensics Protocol Fuzzing	23.3%
PortSwigger Burp Suite Professional	31.5%
GitLab	22.6%
Other	22.599999999999994%

Fuzz Testing Tools

Featured Reviews

Syed Hasan

Specialist Leader at Deloitte

Partner experiences excellent technical support and seamless initial setup

In my opinion, if we are able to extract or show the report, and because everything is going towards agent tech and GenAI, it would be beneficial if it could get integrated with our code base and do the fix automatically. It could suggest how the code base is written and automatically populate the source code with three different solution options to choose from. This would be really helpful.

Read full review

Sarath Kumar Choday

Senior Technical Lead at HCL Technologies

Product security tests for switches and router sections

Codenomicon Defensics should be more advanced for the testing sector. It should be somewhat easy and flexible to install. What I see in the documentation isn't that. Even if something doesn't malfunction, sometimes it is hard to install and execute. The product needs video documentation. This would help a lot more.

Read full review

Quotes from Members

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

Pros

"The SAST component was absolutely 100% stable."

"The product's most valuable feature is static code and supply chain effect analysis. It provides a lot of visibility."

"The UI is very intuitive and simple to use."

"The solution is always updating to continuously add items that create a level of safety from vulnerabilities. It's one of the key features they provide that's an excellent selling point. They're always ahead of the game when it comes to finding any vulnerabilities within the database."

"The process of remediating software security vulnerabilities can now be performed (ongoing) as portions of the application are being built in advance of being compiled."

"It has all the features we need."

"It is a stable product."

"I like that you don't have to compile the code in order to execute static code analysis. So, it's very handy."

More Checkmarx One pros

"The product is related to US usage with TLS contact fees, i.e. how more data center connections will help lower networking costs."

"Whatever the test suit they give, it is intelligent. It will understand the protocol and it will generate the test cases based on the protocol: protocol, message sequence, protocol, message structure... Because of that, we can eliminate a lot of unwanted test cases, so we can execute the tests and complete them very quickly."

"We have found multiple issues in our embedded system network protocols, related to buffer overflow. We have reduced some of these issues."

Cons

"Checkmarx could improve the solution reports and false positives. The false positives could be reduced. For example, we have alerts that are tagged as vulnerabilities but when you drill down they are not."

"The interactive application security testing, or IAST, the interactive part where you're looking at an application that lives in a runtime environment on a server or virtual machine, needs improvement."

"Meta data is always needed."

"Checkmarx needs to improve the false positives and provide more accuracy in identifying vulnerabilities. It misses important vulnerabilities."

"C, C++, VB and T-SQL are not supported by this product. Although, C and C++ were advertised as being supported."

"The Dynamic Application Security Testing (DAST) feature should be better."

"Checkmarx is not good because it has too many false positive issues."

"Checkmarx needs to be more scalable for large enterprise companies."

More Checkmarx One cons

"Codenomicon Defensics should be more advanced for the testing sector. It should be somewhat easy and flexible to install."

"Sometimes, when we are testing embedded devices, when we trigger the test cases, the target will crash immediately. It is very difficult for us to identify the root cause of the crash because they do not provide sophisticated tools on the target side. They cover only the client-side application... They do not have diagnostic tools for the target side. Rather, they have them but they are very minimal and not very helpful."

"It does not support the complete protocol stack. There are some IoT protocols that are not supported and new protocols that are not supported."

Pricing and Cost Advice

"I would rate the solution’s pricing an eight out of ten. The tool’s pricing is higher than others and it is for the license alone."

"The pricing is competitive and provides a lower TCO (total cost of ownership) for achieving application security."

"It is not expensive, but sometimes, their pricing model or licensing model is not very clear. There are similar variables, such as projects or developers, and sometimes, it is a little bit confusing."

"The license has a vague language around P1 issues and the associated support. Make sure to review these in order to align them with your organizational policies."

"It is a good product but a little overpriced."

"If you want more, you have to pay more. You have to pay for additional modules or functionalities."

"We got a special offer for a 30% reduction for three years, after our first year. I think for a real source-code scanning tool, you have to add a lot of money for Open Source Analysis, and AppSec Coach (160 Euro per user per year)."

"The interface used to create custom rules comes at an additional cost."

More Checkmarx One pricing and cost advice

"Licensing is a bit expensive."

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Top Industries

By visitors reading reviews

Financial Services Firm

19%

Computer Software Company

13%

Manufacturing Company

10%

Government

Computer Software Company

20%

Manufacturing Company

16%

Financial Services Firm

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	30
Midsize Enterprise	9
Large Enterprise	38

No data available

Questions from the Community

What alternatives are there for Fortify WebInspect and Fortify SCA?

I would like to recommend Checkmarx. With Checkmarx, you are able to have an all in one solution for SAST and SCA as well. Veracode is only a cloud solution. Hope this helps.

See all answers

What do you like most about Checkmarx?

Compared to the solutions we used previously, Checkmarx has reduced our workload by almost 75%.

See all answers

What is your experience regarding pricing and costs for Checkmarx?

The pricing is relatively expensive due to the product's quality and performance, but it is worth it.

See all answers

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Comparisons

SonarQube Server (formerly SonarQube) vs Checkmarx One

Compared 44% of the time

Veracode vs Checkmarx One

Compared 8% of the time

Checkmarx SAST vs Checkmarx One

Compared 7% of the time

OpenText Core Application Security vs Checkmarx One

Compared 5% of the time

GitHub Advanced Security vs Checkmarx One

Compared 4% of the time

More Checkmarx One Competitors

SonarQube Server (formerly SonarQube) vs Defensics Protocol Fuzzing

Compared 31% of the time

HCL AppScan vs Defensics Protocol Fuzzing

Compared 15% of the time

Veracode vs Defensics Protocol Fuzzing

Compared 14% of the time

Coverity Static vs Defensics Protocol Fuzzing

Compared 12% of the time

Ixia BreakingPoint vs Defensics Protocol Fuzzing

Compared 10% of the time

More Defensics Protocol Fuzzing Competitors

Product Reports

Buyer's Guide

Checkmarx One

September 2025

Download Checkmarx One product report

Buyer's Guide

Defensics Protocol Fuzzing vs. GitLab

September 2025

Download Defensics Protocol Fuzzing product report

Also Known As

No data available

Codenomicon Defensics

Overview

Checkmarx One is an enterprise cloud-native application security platform focused on providing cross-tool, correlated results to help AppSec and developer teams prioritize where to focus time and resources.

Checkmarx One offers comprehensive application scanning across the SDLC:

Static Application Security Testing (SAST)
Software Composition Analysis (SCA)
API security
Dynamic Application Security Testing (DAST)
Container security
IaC security
Correlation, prioritization, and risk management
Codebashing secure code training
AI security
Tech partnerships extending AppSec into runtime analysis
Developer tool integrations including: CI/CD tools, development frameworks, feedback tools, IDEs, programming languages and SCMs

Checkmarx One provides everything you need to secure application development from the first line of code through deployment and runtime in the cloud. With an ever-evolving set of AppSec engines, correlation and prioritization features, and AI capabilities, Checkmarx One helps consolidate expanding lists of AppSec tools and make better sense of results. Its capabilities are designed to provide an improved developer experience to build trust with development teams and ensure the success of your AppSec program investment.

Checkmarx

Defensics® fuzz testing is a comprehensive, powerful, and automated black box solution that enables organizations to effectively and efficiently discover and remediate security weaknesses in software. By taking a systematic and intelligent approach to negative testing, Defensics allows organizations to ensure software security without compromising on product innovation, increasing time to market, or inflating operational costs.

Black Duck

Sample Customers

YIT, Salesforce, Coca-Cola, SAP, U.S. Army, Liveperson, Playtech Case Study: Liveperson Implements Innovative Secure SDLC

Coriant, CERT-FI, Next Generation Networks

Buyer's Guide

Application Security Tools

September 2025

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