Managed Detection Response
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
Enterprise security services combine strategic leadership, continuous monitoring, offensive testing, governance, and incident readiness to reduce cyber risk across complex environments. DeepSeas helps enterprise and mid-market organizations use existing tools, strengthen security programs, prepare for audits, and respond to threats with measurable outcomes. Its complete cyber defense approach supports IT, cloud, operational technology, mobile, and BYOD environments.

Integrated cybersecurity capabilities help organizations prevent, detect, investigate, and manage risk across complex technology environments.
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
This integrated program combines managed detection and response, offensive security, exposure management, threat intelligence, compliance support, and strategic advisory under one coordinated approach.
DeepSeas evaluates assets, controls, processes, and potential attack paths to identify prioritized risks, guide treatment decisions, and support board, audit, insurance, and compliance conversations.
Virtual CISO services provide senior security leadership for strategy, governance, executive reporting, risk management, compliance guidance, and transformation planning without requiring a full-time executive hire.
GRC services support program design, policy and control development, gap assessments, continuous monitoring, evidence organization, and audit-ready reporting for applicable requirements.
Tabletop exercises, response planning, and readiness reviews help teams clarify roles, validate controls, practice coordination, and identify improvements before a real cyber incident occurs.
Enterprise security is more than deploying another tool. DeepSeas connects advisory, threat intelligence, offensive security, monitoring, response, and governance so leaders can understand what matters most and act on it. The approach works with existing SIEM, EDR, and CNAPP investments while supporting IT, cloud, operational technology, mobile, and BYOD environments. Outcomes are designed to be measurable and defensible.

DeepSeas helps organizations turn cybersecurity activity into clearer priorities, stronger defenses, and evidence leaders can understand.
DeepSeas combines experienced practitioners, integrated capabilities, and measurable cyber defense outcomes.
Nearly 30 years of cyber defense experience support enterprise, mid-market, government, education, and regulated organizations.
One coordinated approach connects advisory, offensive security, intelligence, monitoring, response, and GRC capabilities.
Bring-your-own-stack support helps organizations use existing SIEM, EDR, and CNAPP investments without unnecessary replacement.
24/7 monitoring, detection, and response provide continuous coverage for organizations without a fully staffed internal SOC.
Experienced cybersecurity leaders guide complex security decisions and programs.

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.
Enterprise security services are coordinated cybersecurity capabilities designed to protect complex organizations, technology environments, data, and operations. They may include strategic advisory, risk assessments, offensive testing, threat intelligence, managed detection and response, incident response, governance, risk and compliance, and security program development. The objective is to connect these capabilities into a practical program aligned with business priorities and measurable cyber risk reduction.
Talk with DeepSeas about your security priorities, environment, and risk concerns.
Held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Recognized as a Leader and top-five provider.
Award for Managed Detection and Response strategy.
Recognition for global MDR strategy.
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