Ready to start a project with us? Let us know what's on your mind.

1501 Broadway STE 12060
New York, NY 10036-5601

inquiry@winmill.com
1-888-711-6455

x Close

Protect your Organization

Penetration testing is an essential cybersecurity practice that helps organizations identify and remediate high‑risk vulnerabilities before they can be exploited. By simulating real‑world attacks across your systems, applications, and people, penetration testing provides clear visibility into weaknesses, measures your true risk exposure, and reveals the underlying issues that need attention.

Continuous, Scalable Security Testing

Modern cyber threats evolve too quickly for annual or one‑time penetration testing to be enough. The Penetration Testing Stream (PTS) is Winmill’s continuous testing program designed for organizations that need ongoing visibility into their security posture—not just a point‑in‑time snapshot.

Watch our video about the Penetration Testing Stream to see how Winmill helps safeguard your organization from evolving cyber threats.

Enhance the Value of Penetration Testing with a PTS Subscription

A subscription to the Penetration Testing Stream gives you recurring, targeted penetration testing aligned to your environment, technology stack, and risk profile. Our security engineers deliver prioritized findings, remediation guidance, and ongoing collaboration to ensure vulnerabilities are identified and addressed before attackers can exploit them.

The PTS subscription is ideal for teams that want:

  • Continuous coverage instead of yearly penetration testing.

  • Faster validation after code releases or infrastructure changes.

  • A predictable cost structure for recurring security testing.

  • A partnership with experienced penetration testers who learn your environment over time.

The Key Benefits of Winmill's Penetration Testing

Complete View of Vulnerabilities

Regulatory Compliance

Avoiding the Cost of System Downtime

Ensuring Stability of New Assets

Complete View of Vulnerabilities

Clients receive a prioritized list of issues, based on the exploitability and impact of each finding using an industry-standard ranking process.

Regulatory Compliance

The detailed reports generated after penetration testing help to avoid fines for non-compliance and demonstrate due diligence to auditors by maintaining required security controls.

Avoiding the Cost of System Downtime

Our team provides specific guidance and recommendations to avoid financial pitfalls by identifying and addressing risks before attacks or security breaches occur.

Ensuring Stability of New Assets

We work with many organizations that rapidly develop and adopt new applications and infrastructure. Regular penetration testing gives stakeholders confidence that new assets and upgrades are not introducing new security flaws.

Complete View of Vulnerabilities

Clients receive a prioritized list of issues, based on the exploitability and impact of each finding using an industry-standard ranking process.

Regulatory Compliance

The detailed reports generated after penetration testing help to avoid fines for non-compliance and demonstrate due diligence to auditors by maintaining required security controls.

Avoiding the Cost of System Downtime

Our team provides specific guidance and recommendations to avoid financial pitfalls by identifying and addressing risks before attacks or security breaches occur.

Ensuring Stability of New Assets

We work with many organizations that rapidly develop and adopt new applications and infrastructure. Regular penetration testing gives stakeholders confidence that new assets and upgrades are not introducing new security flaws.

A Winmill Penetration Test

The best way to know how intruders will attack your systems is to simulate a real-world attack under controlled conditions. This allows you to pinpoint actual vulnerabilities from the perspective of a motivated attacker. And most importantly, a penetration test will also tell you how to fix the problems.

Includes:

  • Executive Summary Report
  • Full Technical Report
  • Remediation Action Plan
  • Retest: Validation of Remediation

Why Choose Winmill As Your Penetration Testing Partner

Extensive Knowledge & Experience

Our team has extensive experience in penetration testing of external/ internal networks, web applications, application infrastructure, and APIs. We are also experienced in social engineering attacks such as physical security and phishing campaigns. We have performed penetration testing for companies in healthcare, financial services, telecom, energy, and other industries.

High-Quality Reports

Penetration assessments are always peer-reviewed and edited by professional technical writers before delivery, resulting in high-quality reports. In addition to comprehensive technical details, we also provide condensed information security summaries for executive and senior management.

Valuable, Actionable Insights

Our assessments provide valuable, actionable insights into discovered vulnerabilities, potential attack paths, business impact of breaches, and remediation steps. We always include technical details with enough information to reproduce our findings, so that stakeholders can quickly digest actionable information. For every engagement, we offer a complimentary readout call to review our penetration assessment.

Industry Certification

Our team members undergo extensive training, participate as industry thought leaders, and have earned industry certifications including GPEN, GWAPT, OSCP, OSCE, CEH, PMP, CISA, CISSP, and more. To stay one step ahead of attackers and help others do the same, each of our team members devotes over 400 hours per year conducting research and contributing to the security community: publishing articles, participating in conferences, developing custom testing tools, and writing new exploit code.

Our Certifications

5 Types of Penetration Tests

Web Apps

Web applications are a common target for attackers seeking to exploit vulnerabilities in authentication, session management, input validation, and access controls. Our web app penetration testing simulates real-world attacks to uncover flaws before they can be abused, helping you protect sensitive data and ensure secure user experiences. We deliver detailed findings with prioritized remediation guidance tailored to your environment.

Mobile Apps

Mobile apps introduce unique security challenges across both iOS and Android platforms. Our testing evaluates risks such as insecure data storage, improper permissions, weak encryption, and exposed APIs. We assess both the application and its interaction with backend services to ensure end-to-end protection for your users.

IoT Devices

Internet of Things (IoT) devices often lack adequate security controls, making them an entry point for broader attacks. Winmill’s IoT penetration testing examines device firmware, communication protocols, hardware interfaces, and cloud integrations to identify exploitable weaknesses. We help you secure your IoT ecosystem against both remote and physical threats.

Network & Cloud Infrastructure

Your network and cloud infrastructure form the backbone of your digital operations—but misconfigurations and overlooked vulnerabilities can leave them exposed. Our testing simulates internal and external threats to evaluate firewalls, endpoints, identity and access management, and cloud services. We help ensure your infrastructure is resilient, segmented, and aligned with best practices.

AI Security

AI and machine learning models present new threat surfaces—from adversarial input manipulation to model theft and data poisoning. Our AI security assessments identify and test for vulnerabilities in your AI pipelines, deployment environments, and data workflows. We help you safeguard the integrity, confidentiality, and reliability of your intelligent systems.

"Winmill delivered comprehensive, high‑quality penetration tests that exceeded our expectations. Their expertise and guidance made a measurable impact on our security."

Winmill Client

Cisco logo: Enterprise computer network security and managed IT support services.
Microsoft logo: Success in application development software and serverless architecture solutions.
Dish Corporate Logo
Equifax logo: Partner in network security and penetration testing compliance to mitigate cybersecurity risks.
Ernst and Young Corporate Logo
Federal Aviation Administration logo: Business continuity planning and disaster recovery for critical infrastructure.
Home Depot logo: Web application penetration testing and software development for retail scale.
IATSE Logo
American Greetings Logo
Asics Logo
BD Briggs Logo
Booz Allen Hamilton Logo
Credit Suisse logo: Success story in cyber security for business and protecting against financial cyber threats.
Disney Logo
Duke Energy Logo
SAIC Logo
Radiant Logic Logo
P.F. Chang's Logo
Ohio State Logo
Iona College Logo
Harry Walker Logo
Google logo: Collaboration on software development engineering and SDLC methodologies.
Six Continents Logo
J.M. Smuckers Logo
Sprint Logo
Terumo Logo
UPS logo: Managed IT services supporting complex business continuity and recovery logistics.
Yale University Logo
Columbia University Logo
Kaiser Permanente Logo

Interested In Starting A Project With Our Pen Testing Experts?

LET'S TALK