Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside your existing security tools.
DeepSeas helps state, local, and education organizations strengthen cyber resilience with managed detection and response, risk assessments, penetration testing, compliance support, advisory, and incident readiness. Built for public-sector environments with sensitive data, distributed systems, and constrained security teams, our expert-led approach delivers continuous visibility, practical risk reduction, and measurable outcomes without requiring you to replace the tools you already use.

Integrated cybersecurity services help public-sector teams monitor threats, reduce exposure, strengthen compliance, and improve response readiness.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside your existing security tools.
Assessments identify strengths, weaknesses, and prioritized risks through stakeholder interviews, asset inventory, risk workshops, and documented treatment planning.
Ethical hackers conduct controlled testing across networks, applications, cloud environments, and other approved targets to expose attack paths before malicious actors exploit them.
GRC services support policy development, control mapping, evidence collection, continuous monitoring, audit readiness, and compliance programs for public-sector requirements.
Virtual CISO and strategic advisory services provide executive guidance for cybersecurity strategy, governance, board reporting, risk management, budgets, and transformation planning.
Tabletop exercises, response planning, and incident readiness reviews help teams clarify roles, validate controls, practice coordination, and identify practical improvements.
DeepSeas combines continuous monitoring, offensive testing, threat intelligence, governance, compliance, and strategic guidance into a coordinated cybersecurity program. SLED organizations can improve visibility across distributed environments, prioritize the risks most likely to affect public services, and prepare teams to respond with confidence. Services work with existing SIEM, EDR, and CNAPP tools, helping public-sector teams strengthen protection without unnecessary technology replacement.

DeepSeas supports nearly 1,000 organizations worldwide with practical, customized cybersecurity programs.
A connected team and broad cyber defense capabilities help SLED organizations address risk with clarity.
24/7 monitoring, detection, and response helps public-sector teams address threats without staffing a round-the-clock SOC.
Bring-your-own-stack support works inside established SIEM, EDR, and CNAPP environments without unnecessary replacement.
Experience spans municipalities, local governments, higher education, and federal agencies with complex security needs.
Documented findings, actions, and risk reduction support accountability with leadership, auditors, insurers, and stakeholders.
Experienced practitioners bring strategic, technical, and operational cybersecurity 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 Operations Center, or SOC, is a team and operating function that monitors systems, investigates suspicious activity, and coordinates security response. A SOC brings together people, processes, and technology to identify threats and support containment and recovery. DeepSeas operates a CyberFusion SOC that can provide managed detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments.
Speak with DeepSeas about your organization’s security priorities and operating environment.
Held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Leader and top-five provider recognition in 2024.
Award for MDR competitive strategy leadership.
Recognition for global MDR strategy.
Share your security priorities with DeepSeas to explore a customized SLED cybersecurity program.
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