Network Testing
DeepSeas tests external and internal network infrastructure, Active Directory, APIs, wireless systems, cloud environments, and physical access points to reveal attack paths automated tools can miss.
Penetration Testing as a Service PTaaS helps organizations uncover exploitable weaknesses before attackers do. DeepSeas combines manual testing, adversary emulation, and practical remediation guidance across networks, cloud environments, applications, social engineering, and red team engagements. With nearly 30 years of cyber defense experience and support for organizations worldwide, DeepSeas turns security testing into measurable risk reduction.
Manual security testing and adversary simulation designed to expose weaknesses across your most important attack surfaces.
DeepSeas tests external and internal network infrastructure, Active Directory, APIs, wireless systems, cloud environments, and physical access points to reveal attack paths automated tools can miss.
Cloud penetration testing examines identity, access, configurations, exposed services, APIs, secrets, logging, detection coverage, and boundaries across IaaS, PaaS, SaaS, and connected environments.
Manual testing of web applications, mobile applications, and APIs identifies authentication, authorization, session handling, business logic, input handling, and data exposure weaknesses.
Phishing, vishing, smishing, and physical testing evaluate how people, processes, and technical controls respond to realistic attempts to obtain sensitive information or access.
Human-led red team and adversary emulation engagements simulate realistic attacker tradecraft to test detection, response, and the ability to protect defined business objectives.
Multi-vector offensive security combines controlled attack simulations and penetration testing to identify and expose weaknesses before malicious actors can exploit them.
DeepSeas PTaaS uses ethical hackers and real attacker tradecraft rather than relying on checkbox scans alone. Testing can cover networks, cloud environments, applications, APIs, people, physical access, and adversary pathways. Findings include evidence, risk context, and practical remediation guidance, helping security and leadership teams understand which weaknesses create meaningful exposure and where defensive controls should be improved.
See how controlled testing can clarify exposure, validate defenses, and guide practical security improvements.
"DeepSeas allows my team to deliver the compliance needed to stay up-to-date with all of our governing bodies. Furthermore, we are more confident that our staff, faculty, and students are better protected with DeepSeas as a cybersecurity partner. Without a doubt, DeepSeas is worth every dollar spent. This is our..."
"DeepSeas data security experts are top notch. They have helped us to improve our cybersecurity posture through risk assessments, penetration testing, and the development of a Data Governance Strategy. They are an invaluable partner."
DeepSeas connects offensive testing with broader cyber defense expertise and measurable security outcomes.
Ethical hackers use manual validation and realistic attack techniques to uncover weaknesses automated testing can miss.
Testing spans networks, cloud, applications, APIs, physical access, social engineering, and adversary emulation.
Detailed evidence and customized remediation guidance help teams understand and address meaningful attack paths.
Nearly 30 years of cyber defense experience supports practical testing for enterprise and mid-market organizations.
Experienced cybersecurity specialists support practical, outcome-focused offensive security engagements.
Chief Executive Officer
Lewie Dunsworth serves as Chief Executive Officer of DeepSeas, leading the company's mission to make cybersecurity a strategic advantage for nearly 1,000 organizations worldwide. Under his leadership, DeepSeas has grown into a recognized leader in Managed Detection and Response, earning recognition from Gartner and Frost & Sullivan as a top provider in the industry. Lewie drives the company's vision across its six-layer cyber defense stack, spanning strategic advisory, offensive security, threat intelligence, managed detection and response, the CyberFusion SOC, and governance, risk and compliance. He is committed to ensuring that enterprise, mid-market, government, and education clients receive proactive, measurable, and customized cybersecurity outcomes. Lewie's leadership reflects nearly three decades of industry experience and a steadfast focus on client trust and operational excellence.
CISM, CIPP/E, SANS GCIH, GIAC, HITRUST
Keith Robertson brings 25 years of governance, risk management, and compliance experience to DeepSeas, including prior service as a Fortune 500 Chief Security Officer and Enterprise Risk Officer. He holds an impressive array of certifications, including CISM, CIPP/E, SANS GCIH, GIAC, and HITRUST, reflecting his comprehensive expertise across security management, privacy, incident handling, and healthcare compliance. Keith's executive-level experience gives him a unique perspective on enterprise risk, allowing him to help DeepSeas clients align cybersecurity strategy with broader business objectives. His background in high-stakes corporate security leadership positions him well to guide organizations through complex governance challenges and regulatory requirements. Keith is committed to helping clients build mature, enterprise-grade risk management programs that support long-term security and compliance success across diverse industries.
CISSP, CCSK, Licensed Attorney
Sean Duffy combines 25 years of cybersecurity experience with a unique legal background, holding both CISSP and CCSK certifications as well as a license to practice law. A United States Navy veteran, Sean brings a disciplined, mission-focused approach to his work advising C-suite executives and boards of directors on cybersecurity strategy and risk. His legal expertise allows him to provide clients with a nuanced understanding of regulatory and liability considerations alongside technical security guidance, a combination that is especially valuable for organizations navigating complex compliance landscapes. Sean's extensive advisory experience makes him a trusted voice for senior leadership teams seeking to understand cybersecurity risk in business terms. His military background and legal training reflect the depth and diversity of expertise that defines the DeepSeas team.
CISSP, HITRUST
Matt Lammers is an experienced CISO and IT risk executive who brings both deep technical certification and management consulting experience to DeepSeas. Holding CISSP and HITRUST credentials, Matt has built a career helping organizations strengthen their cybersecurity posture while managing enterprise-level risk. His consulting background equips him with strong skills in translating complex security concepts into actionable business strategies for executive stakeholders. Matt's international perspective, including his status as an Australia permanent resident, gives him valuable insight into global compliance and security considerations that benefit DeepSeas clients operating across borders. He is dedicated to helping organizations build resilient, well-governed cybersecurity programs that align with both operational needs and executive priorities, reinforcing DeepSeas' commitment to customized, outcome-driven security solutions.
Common penetration testing types include network testing, cloud penetration testing, web and application testing, mobile application testing, API testing, social engineering testing, physical security testing, and red team or adversary emulation engagements. The appropriate combination depends on the systems, attack surfaces, business objectives, and defensive controls being evaluated. DeepSeas supports multi-vector testing across these areas.
Speak with DeepSeas about your testing objectives and security priorities.
Held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Recognized as a Leader and top-five provider in 2024.
Award for Managed Detection and Response competitive strategy leadership.
Recognition for strategy in global MDR best practices.
Share your objectives with DeepSeas and explore a penetration testing engagement aligned with your environment.
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