Managed Detection Response
DeepSeas provides continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside tools you already own.
Strengthen your organization’s security program with flexible cyber security subscriptions from DeepSeas. Combine managed detection and response, exposure management, advisory, testing, compliance support, and other capabilities around your priorities. DeepSeas delivers expert-led, measurable protection through existing tools and tailored service combinations, helping organizations reduce surprises, improve readiness, and maintain continuous visibility across modern environments.

Flexible cybersecurity capabilities combine monitoring, assessment, advisory, compliance, and response around your organization’s risk priorities.
DeepSeas provides continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside tools you already own.
Continuous network visibility helps identify lateral movement, command and control, data staging, and unmanaged devices that endpoint agents may not cover.
Experts examine endpoint, identity, network, cloud, email, and other telemetry for evidence of current or historical intrusion, then clarify findings and remediation priorities.
Controlled penetration testing and attack simulations identify weaknesses across systems, applications, infrastructure, and processes before malicious actors exploit them.
DeepSeas helps establish and mature security programs through assessments, roadmaps, policies, governance, operating capabilities, and continuous improvement.
Senior advisors support security strategy, board communication, risk decisions, program transformation, acquisitions, insurer reviews, and executive priorities.
Cyber security subscriptions let organizations combine capabilities without treating every security need as a disconnected project. DeepSeas can connect managed detection and response with exposure management, offensive testing, threat intelligence, compliance, incident readiness, and strategic guidance. Services support existing SIEM, EDR, and CNAPP investments while extending coverage across IT, cloud, operational technology, mobile, and BYOD environments.

DeepSeas helps organizations pursue measurable security outcomes through integrated, practitioner-led cybersecurity programs.
DeepSeas combines broad cybersecurity capabilities with flexible delivery and experienced practitioners.
Approximately 30 years of cyber defense experience supports practical guidance for complex security challenges.
One program can connect advisory, testing, intelligence, detection, response, and governance capabilities.
Bring-your-own-stack support helps organizations extend SIEM, EDR, and CNAPP investments without unnecessary replacement.
24/7 monitoring, detection, and response helps organizations maintain coverage beyond internal team capacity.
Experienced cybersecurity leaders and practitioners guide complex security 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.
Cyber security subscriptions provide ongoing access to selected cybersecurity capabilities through a recurring service relationship. Depending on priorities, a subscription may include managed detection and response, exposure management, advisory, vulnerability management, compliance support, testing, incident readiness, or other services. DeepSeas combines capabilities around the organization’s environment and goals rather than requiring every customer to purchase an identical package.
Talk with DeepSeas about a subscription aligned to your risks, tools, and priorities.
Held by DeepSeas specialists.
Recognition as a top 40 MDR provider.
Leader and top-five provider recognition.
Award for MDR competitive strategy leadership.
Recognition for global MDR strategy.
Tell DeepSeas about your environment, priorities, and security goals. The team can discuss relevant subscription capabilities and next steps.
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