Penetration Testing Services
Use our offensive and defensive expertise to get the most comprehensive report covering all your vulnerabilities and actionable steps to remediate them.
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Try a better way to do pen testing services
Pentest services run by people
Direct access to domain experts
Diversified team for holistic service
Free post remediation testing
With UnderDefense you see more than scanners do
Your trusted partner for all types of cyber security testing services
160+
Tests annually
1440+
Vulnerabilities detected per year
2-4
Weeks an average pentest lasts
Expect personalized cyber security penetration testing services
Black box
Conditions: We try to penetrate the system and identify other ways to harm your business by having minimum information about your company
Value: Black box pentesting service simulates a real-world attack and helps identify technical vulnerabilities and human-related security issues
Gray box
Conditions: We attack your business having general information about your infrastructure and system, including logins and passwords
Value: Gray box pen testing service is the golden mean between quality and price. It’s cheaper and faster compared to the black box approach
White box
Conditions: We try to hack your organization knowing logins and passwords, and having full access to an application or system architecture and code
Value: White box penetration test service allows you to detect hidden vulnerabilities that may go unnoticed during other types of pentests
Not sure what type of security testing service you need?
We go beyond traditional pen testing services
Detailed report with clear remediation guidelines
Benefit from the most comprehensive report on the market. Utilize the document to explain to the c-level and stakeholders how vulnerabilities may harm your business. Share it with your IT team to help them quickly solve the issues using tactical recommendations and provided artifacts
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Professional attestation letter
Proof to your partners, auditors, prospects, and customers that your business is security-conscious and forward-looking with the attestation letter from UnderDefense. Gain a written confirmation of your security level describing the scope of work, cybersecurity assessment results, and overall security rating
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Additional free services for better outcomes
Get expert penetration testing consulting services throughout the entire remediation process. Don't overpay for the same service and get free post-remediation assessment from UnderDefense
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Access the all-in-one UnderDefense MAXI platform
Create a free UnderDefense MAXI account and improve your business security immediately by:
- Conducting a comprehensive analysis of your external risks
- Staying compliant with strict industry regulations and standards
- Collecting all your penetration testing reports in one place
- Monitoring and adjusting your security perimeter 24/7
Our customers say it best
Named as a high Perfomer Incident Response System Security by G2 Crowd
4.8
“Not having to worry about ransomware, alert overload and reporting. Getting a clear view of my security posture, where the threats are coming from and how they are handled. They literally took care of all our problems.”
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Managed Detection
and Response
(MDR)
4.9
“Holistic approach, exceeding requirements with added value and cost savings; smooth transition to Crowdstrike EDR and Elastic SIEM implementation; flexibility with a 120-hour incident response retainer, surpassing the standard 40 hours.”
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Named as a Top Cybersecurity Company 2025 by Clutch
5.0
“UnderDefense impressed us with their ability to tailor their services to our unique needs and challenges. They didn't simply provide a
one-size-fits-all solution, but instead took the time to understand our specific environment and requirements.”
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Our awards and certifications
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Frequently asked questions
What is penetration testing?
A penetration test, also known as pen test services or ethical hacking, is a simulated cyberattack that helps organizations detect and highlight weaknesses and vulnerabilities in their security postures. This proactive cybersecurity technique allows business owners to assess the hackability of their networks, systems, processes, and people and take the necessary actions to prevent that.
What's the difference between penetration testing services and vulnerability assessment?
Vulnerability assessment is the technique used to identify, classify, and prioritize issues in infrastructures, apps, and systems. It is usually conducted using automated testing tools, including network vulnerability scanners.
How much does a penetration testing service cost?
The cost of penetration testing managed service depends on several factors, including the type of selected pentest methodology, the complexity and scale of the organization, the number of clouds, IPs, applications, and more. You can check the average price for penetration test services or contact our experts and get a free quote today.
How long does a penetration test take?
On average, cyber security testing services take around 3 working weeks, depending on the size and complexity of an organization. A typical timeline for a pentest includes the following stages:
- Planning. Together with you, we define and document test objectives, scope of work, start date, and engagement model for the pen test as a service team.
- Reconnaissance. Depending on the selected pen testing as a service methodology, we collect the necessary information regarding targeted apps and infrastructure, roles, credentials, business logic, and more.
- Vulnerability discovery and exploitation. Our ethical hackers manually test the defined assets to identify security weaknesses, gaps in design and architecture, and process loopholes. They exploit all the discovered vulnerabilities to evaluate the risk level of each issue and potential harm to the business.
- Reporting. The UnderDefense pen testing team creates a detailed report on all the findings, including all the evidence and artifacts like videos and screenshots. Additionally, our experts prepare a list of tactical recommendations on how to solve each vulnerability quickly and effectively. The working results are presented to the client.
- Free post-remediation testing. When all the improvements and changes are made, our ethical hackers are ready to check fixed vulnerabilities and retest the targeted assets. Upon completing the assessment, you get a professional attestation letter confirming your security rating.
How often should penetration tests be conducted?
We recommend performing pen tests at least once a year. However, you should also take into account the following factors:
- Regulatory Requirements – Compliance standards like PCI DSS, ISO 27001, and SOC 2 may require more frequent testing.
- Significant Changes – Conduct a test after major infrastructure, application, or system updates.
- Incident Response – If a security breach occurs, a pen test can help identify vulnerabilities that were exploited.
- Business Risk – High-risk industries or businesses handling sensitive data may need more frequent testing.
- Threat Landscape – Emerging threats may necessitate additional assessments to stay ahead of attackers.
When can you start pen testing?
UnderDefense offers a flexible business approach that depends on the specific situation. We encourage you to contact our sales representatives and discuss how quickly you need us to get started.
What methodologies for a pentest as a service do you use?
We follow proven and globally recognized methodologies like the Penetration Testing Execution Standard (PTES), OWASP Top 10 Web Application Security Risks, OWASP Web Security Testing Guide, and the Open Source Security Testing Methodology Manual (OSSTMM).
Do you store the results of penetration services?
We send you the testing results via an encrypted channel and do not collect or store the results after that.