Risk Assessments
DeepSeas evaluates cybersecurity posture, assets, controls, processes, and potential impact to create a prioritized, defensible plan for reducing organizational risk.
DeepSeas helps organizations identify, prioritize, and reduce cyber risk through expert-led assessments, managed detection and response, offensive security, governance, compliance, and strategic advisory. With approximately 30 years of experience serving nearly 1,000 organizations worldwide, DeepSeas delivers measurable protection across IT, cloud, operational technology, mobile, and BYOD environments without requiring you to replace the tools you already own.

Integrated cybersecurity services help organizations assess exposure, strengthen defenses, manage compliance, and respond to evolving threats.
DeepSeas evaluates cybersecurity posture, assets, controls, processes, and potential impact to create a prioritized, defensible plan for reducing organizational risk.
Continuous monitoring, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments, using tools you already own.
Ethical hackers use manual testing, adversary emulation, and real attacker tradecraft to expose weaknesses in networks, applications, cloud environments, and processes.
DeepSeas maps external attack surfaces, identifies unknown assets and exposed credentials, and prioritizes vulnerabilities by exploitability, asset criticality, and threat activity.
Build or mature governance, policies, controls, metrics, operating processes, and roadmaps aligned with business goals and the organization’s actual security capabilities.
Design and operate compliance programs with control development, evidence organization, continuous monitoring, gap assessments, and support for audits and customer requirements.
DeepSeas connects assessment, monitoring, offensive testing, advisory, and compliance into a coordinated security program. Instead of leaving your team with disconnected findings or forwarded alerts, specialists identify what is most likely to compromise your organization, what matters most to fix, and how to demonstrate progress. Coverage can extend across IT, cloud, OT, mobile, and BYOD while supporting existing security tools and governance.

DeepSeas supports enterprise, mid-market, government, education, and regulated organizations with practical cyber defense expertise.
A practitioner-led partner connects strategic guidance with the operational work required to reduce cyber risk.
Approximately 30 years of cyber defense experience supporting nearly 1,000 organizations worldwide.
One security partner spans advisory, offensive security, intelligence, detection, response, and compliance.
Bring-your-own-stack support helps organizations use established SIEM, EDR, and CNAPP investments.
24/7 monitoring and response help organizations identify and address threats before they become larger disruptions.
Experienced cybersecurity leaders connect technical expertise with business-focused risk decisions.

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.
Security risk solutions are services and capabilities that help an organization understand its cyber exposure, prioritize weaknesses, strengthen controls, detect threats, and respond effectively. They may include cybersecurity risk assessments, penetration testing, managed detection and response, vulnerability management, exposure management, governance and compliance, incident readiness, and strategic security advisory. The right combination depends on the organization’s risks, operating model, technology, and security objectives.
Talk with DeepSeas about the security priorities affecting your organization.
ISO Lead Auditor certifications held by DeepSeas specialists.
Recognized as a top 40 Managed Detection and Response provider.
Named a Leader and top-five provider in the 2024 Frost Radar market.
2024 Best Practices Competitive Strategy Leadership Award for MDR.
2024 Global MDR Best Practices Award for Strategy.
Share your priorities and connect with DeepSeas specialists about practical next steps.
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