Penetration Testing
Manual penetration testing uses real attacker tradecraft to uncover hidden attack paths across network, cloud, application, physical, and social engineering environments.
DeepSeas provides certified ethical hacking services that uncover exploitable weaknesses before malicious actors do. Our expert-led penetration testing, adversary simulations, application assessments, and social engineering exercises deliver actionable evidence for stronger defenses, compliance requirements, and informed security decisions. With nearly 30 years of cyber defense experience and coverage across enterprise, mid-market, government, and education environments, we help organizations reduce risk proactively.

Controlled offensive security services identify weaknesses, validate defenses, and provide practical remediation guidance before attackers exploit them.
Manual penetration testing uses real attacker tradecraft to uncover hidden attack paths across network, cloud, application, physical, and social engineering environments.
Network penetration testing examines external and internal infrastructure, Active Directory, APIs, wireless systems, cloud environments, and physical access points for exploitable paths.
Cloud penetration testing evaluates identity, permissions, configurations, exposed services, APIs, secrets, logging, and boundaries across IaaS, PaaS, and SaaS environments.
Web, mobile, and API testing combines manual validation with technical analysis of authentication, authorization, business logic, data exposure, and third-party components.
Red team and adversary emulation engagements mimic realistic attacker behavior to test whether security controls detect, investigate, and interrupt defined objectives.
Phishing, vishing, smishing, and physical assessments evaluate how people, processes, and technical controls respond to credible attack attempts.
DeepSeas ethical hackers conduct controlled attack simulations that go beyond automated scans to reveal how weaknesses connect across your environment. Testing can cover networks, cloud platforms, applications, APIs, physical access, and human processes. Findings include evidence, practical remediation guidance, and strategic context so security teams can prioritize changes that meaningfully reduce cyber risk and support compliance, customer, board, or insurer requirements.

See how controlled testing helps organizations validate defenses, prioritize remediation, and make cybersecurity decisions with greater confidence.
DeepSeas combines offensive expertise with broader cyber defense capabilities to turn testing findings into measurable security improvements.
Certified ethical hackers and experienced practitioners apply human-led testing to uncover weaknesses automated tools can miss.
Testing demonstrates how vulnerabilities connect across systems, helping organizations prioritize practical risk rather than isolated findings.
Offensive security findings can inform detection, exposure management, incident readiness, governance, and broader cyber defense decisions.
DeepSeas brings approximately 30 years of cyber defense experience serving nearly 1,000 organizations worldwide.
Experienced cybersecurity leaders and practitioners support complex 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.
Ethical hacking costs vary according to the testing scope, assets reviewed, attack surfaces included, engagement objectives, and reporting requirements. A network test, cloud assessment, application review, red team exercise, and social engineering assessment can require different levels of planning and specialist effort. DeepSeas develops testing around the organization’s risk and objectives, with pricing available through a tailored consultation rather than a generic package.
Speak with DeepSeas about a controlled assessment aligned with your security objectives.
Held by DeepSeas specialists.
Recognition received in 2023.
Recognition received in 2024.
Award for Managed Detection and Response.
Award for strategy.
Tell DeepSeas about your environment, objectives, and security questions so the right testing approach can be discussed.
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