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HackerOne vs Microsoft Defender Vulnerability Management comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 21, 2025

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
Sponsored
Ranking in Vulnerability Management
17th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
HackerOne
Ranking in Vulnerability Management
44th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
5
Ranking in other categories
Application Security Tools (24th), Bug Bounty Platforms (2nd), Penetration Testing Services (1st), Attack Surface Management (ASM) (15th)
Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
12th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
15
Ranking in other categories
Advanced Threat Protection (ATP) (16th), Microsoft Security Suite (20th), Risk-Based Vulnerability Management (5th)
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.0%, up from 0.1% compared to the previous year. The mindshare of HackerOne is 0.5%, up from 0.2% compared to the previous year. The mindshare of Microsoft Defender Vulnerability Management is 2.7%, down from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Microsoft Defender Vulnerability Management2.7%
Zafran Security1.0%
HackerOne0.5%
Other95.8%
Vulnerability Management
 

Featured Reviews

Israel Cavazos Landini - PeerSpot reviewer
Weekly insights and risk analysis facilitate informed security decisions
I appreciate the weekly insights Zafran provides, which include critical topics for networks and IT security, allowing us to evaluate which insights apply to our environment. The organization score feature is valuable to keep the leadership team updated on how our infrastructure fares security-wise. The applicable risk level versus base risk level feature is beneficial because prior to Zafran, we only used the base risk level, but now understand that risk depends on the asset itself. Zafran is an excellent tool.
Faizan Nehal - PeerSpot reviewer
Platform supports skill development with effective vulnerability reporting
Everything has become slower on HackerOne. I have noticed that older researchers receive all the private invites while newer ones receive fewer. The same goes for real-life events, where the same people are invited repeatedly. There are no clear guidelines for being invited to programs and conferences, and the process for receiving invitations appears arbitrary.
NaySan @ Suraj Verma - PeerSpot reviewer
Provides actionable vulnerability insights and recommendations with notable efficiency
They may need to improve the portal refresh rate for Microsoft Defender Vulnerability Management because it takes time for recommendations to disappear after mitigation; sometimes, it takes one week, when it should ideally take only one to two hours. Overall, everything is good with Microsoft Defender Vulnerability Management, but the portal refresh rate can take up to seven days in some cases and three or four days in others to reflect changes.

Quotes from Members

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

Pros

"Zafran has become an indispensable tool in our cybersecurity arsenal."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"We saw benefits from Zafran Security almost immediately after deploying it."
"Zafran is an excellent tool."
"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"It helps me to get new sales, profits, and other benefits."
"HackerOne is larger than WebCloud and has a better reputation than BugCloud, which results in a smoother process."
"The most valuable feature of HackerOne is its variety of programs. These programs provide depth into various areas, such as mobile, API, and websites."
"Apart from getting all the bug bounty opportunities, we also get the chance to practice in a safe environment, like a demo setup. These features are great for beginners who want to explore bug bounties in the future."
"The integration with Sentinel has been one of the most valuable features for my organization."
"Microsoft Defender Vulnerability Management provides regular advisories and recommendations that help improve our security posture."
"One valuable feature is the Microsoft Security Scorecard."
"The solution is highly scalable."
"The recommendations, scores, and steps to remediate actions are highly useful."
"The solution is up-to-date and helps prevent zero-day attacks."
"A valuable feature is the ease of management and integration with Microsoft products."
"The main advantage of Microsoft Defender Vulnerability Management is that it can locate and prevent most threats even when the endpoints are not connected to the corporate network, as long as the internet is available."
 

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."
"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."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"Response time can be improved. The HackerOne Trust team can be slow to respond sometimes. They're not using AI, which could help reduce the number of duplicate reports."
"Everything has become slower on HackerOne. I have noticed that older researchers receive all the private invites while newer ones receive fewer."
"Everything has become slower on HackerOne."
"One issue I've experienced is traffic. Many people try to participate when an opportunity with a bounty of around 1,000-15,000 dollars comes up. In this case, the first person to report the vulnerability gets the bounty. If a second person reports the same vulnerability, they are marked as duplicated instead of receiving some recognition. The second person also invested time finding the issue, so I think this can be improved."
"The ability to view the conversation between the triagers and the programs will be really good."
"The worst aspect is the refresh rate of the dashboard."
"The technical support takes too much time to resolve tickets."
"It is expensive."
"Sometimes the stability of the agents could be improved."
"Probably my only criticism would be the cost. It is expensive."
"Regarding Microsoft's technical support, I would rate it a three out of ten; they could be more responsive and knowledgeable."
"The product is not stable; it is very resource-intensive, consuming a lot of memory and CPU, which makes it slow."
"It is challenging to extract and customize reports from the system."
 

Pricing and Cost Advice

Information not available
"The solution is free."
"The tool is open-source and free for bug bounty hunters."
"I rate the product's price a three on a scale of one to ten, where one is a low price, and ten is a high price."
"The licensing model follows a per-user per-month structure."
"The product’s pricing is medium."
"The licensing costs are reasonable."
"The tool is a bit costly."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise5
 

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...
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...
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...
What is your experience regarding pricing and costs for HackerOne?
The cost is rated as one since there is no need to pay anything, not even a fee or commission.
What needs improvement with HackerOne?
Everything has become slower on HackerOne. I have noticed that older researchers receive all the private invites whil...
What is your primary use case for HackerOne?
My use case is similar to DuckTron. The processes I use for DuckTron are exactly the same for HackerOne. Therefore, t...
What is your experience regarding pricing and costs for Microsoft Defender Vulnerability Management?
I would rate the price as a three for us due to the partnership discounts. For non-partners, however, the cost could ...
What needs improvement with Microsoft Defender Vulnerability Management?
I have not thought about improvements for Microsoft Defender Vulnerability Management as of now, but this is typicall...
 

Also Known As

No data available
HackerOne Assets, HackerOne Pentesting Services, HackerOne Security Assessments, HackerOne Vulnerability Management
No data available
 

Overview

 

Sample Customers

Information Not Available
Anthropic, Crypto.com, General Motors, GitHub, Goldman Sachs, Uber, and the U.S. Department of Defense
Information Not Available
Find out what your peers are saying about HackerOne vs. Microsoft Defender Vulnerability Management and other solutions. Updated: September 2025.
869,566 professionals have used our research since 2012.