Security Risk Assessments
DeepSeas evaluates your security program, assets, controls, processes, and risks, then delivers prioritized guidance to support business, board, audit, and compliance decisions.
Build a security program your organization can operate, measure, and improve. DeepSeas combines strategic advisory, risk assessments, program development, governance support, incident readiness, and practical training to help enterprise and mid-market teams make informed decisions, strengthen resilience, and demonstrate progress. Its practitioner-led approach supports organizations across the United States with security guidance grounded in operational realities.

Practical consulting and training services that help organizations strengthen strategy, operations, governance, and workforce readiness.
DeepSeas evaluates your security program, assets, controls, processes, and risks, then delivers prioritized guidance to support business, board, audit, and compliance decisions.
Build a sustainable cybersecurity program through baseline assessment, future-state planning, foundational policies, operational integration, and continuous improvement aligned with organizational risk.
Receive senior counsel for security strategy, tool consolidation, acquisitions, insurer reviews, board conversations, budgeting, and decisions that require experienced operational judgment.
Extend your leadership capacity with CISO-level guidance covering governance, risk management, executive reporting, cyber insurance, strategic planning, and security program oversight.
Prepare security, IT, legal, communications, and executive teams through response planning, tabletop exercises, mock incidents, playbooks, escalation guidance, and improvement recommendations.
Develop practical governance and compliance programs with policy support, control development, gap assessments, evidence organization, and continuous readiness guidance.
Enterprise security consulting should produce decisions your team can defend and actions your organization can execute. DeepSeas connects strategic advisory with assessments, governance, program development, incident readiness, and operational security capabilities. Its specialists help clarify what matters most, prioritize improvements, and align security investment with business risk. Training and knowledge transfer help your team build ownership rather than depend on disconnected recommendations.

DeepSeas helps organizations turn cybersecurity priorities into measurable, practical, and sustainable outcomes.
Get practitioner-led guidance designed around your organization, risk profile, existing tools, and strategic priorities.
Nearly 30 years of cyber defense experience informs practical recommendations for complex enterprise environments.
Senior practitioners connect strategy, operations, governance, compliance, and response instead of delivering isolated advice.
Flexible combinations of technology, personnel, consulting, and training are tailored to your organization’s needs.
Prioritized roadmaps and documented progress help leadership, boards, auditors, and insurers understand security improvement.
Experienced cybersecurity leaders bring strategic, technical, and governance expertise.

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.
A security consultant evaluates an organization’s security posture, identifies meaningful risks, and helps leaders decide what to improve first. Depending on the engagement, this can include risk assessments, security program design, governance, policies, compliance readiness, incident response planning, executive advisory, and workforce training. DeepSeas focuses on practical recommendations that align security capabilities with business priorities and operational realities.
Talk with DeepSeas about your priorities, risks, and next steps.
ISO Lead Auditor certifications held by DeepSeas specialists.
Recognition as a top 40 Managed Detection and Response provider by Gartner.
Recognition as a Leader and top-five provider in the 2024 Frost Radar market.
Award for Competitive Strategy Leadership in Managed Detection and Response.
Recognition for strategy in the 2024 Global MDR Best Practices Awards.
Share your priorities with DeepSeas and explore practical consulting, advisory, and training options.
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