Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside the security tools you already own.
Compare cybersecurity software and integrated security capabilities for 2026, from managed detection and response to exposure management, penetration testing, compliance, and strategic advisory. DeepSeas combines expert-led operations, existing-tool compatibility, continuous monitoring, and measurable outcomes to help organizations reduce risk, strengthen resilience, and make more informed security investments.
Explore integrated cybersecurity capabilities designed to improve visibility, detection, testing, compliance, and strategic decision-making.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, working inside the security 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.
Continuously map external attack surfaces, monitor dark web exposure, prioritize vulnerabilities by exploitability and asset criticality, and connect findings with response operations.
Evaluate security strengths, weaknesses, scenarios, controls, and prioritized risks through stakeholder interviews, asset inventory, workshops, and documented treatment planning.
Ethical hackers conduct manual penetration testing and adversary simulation across networks, cloud environments, applications, APIs, physical access, and social engineering vectors.
Build and operate compliance programs with control mapping, evidence packaging, gap assessments, policy development, continuous monitoring, and audit support.
The right cybersecurity software should do more than generate alerts or populate another dashboard. DeepSeas combines technology, analysts, threat intelligence, offensive testing, compliance support, and advisory into a coordinated security program. Bring-your-own-stack support helps organizations retain existing SIEM, EDR, and CNAPP investments while improving visibility, response, governance, and measurable cyber risk reduction.
DeepSeas helps organizations turn security investments into measurable visibility, response, compliance, and risk reduction.
"DeepSeas data security experts are top notch. They have helped us to improve our cybersecurity posture through risk assessments, penetration testing, and the development of a Data Governance Strategy. They are an invaluable partner."
DeepSeas combines experienced practitioners, integrated capabilities, and flexible support for complex security environments.
Nearly 30 years of cyber defense experience support informed security decisions and practical program improvement.
A six-layer cyber defense stack connects advisory, offensive security, intelligence, detection, SOC operations, and GRC.
Bring-your-own-stack support helps organizations use existing SIEM, EDR, and CNAPP investments without unnecessary replacement.
24/7 monitoring, detection, and response support organizations that need continuous coverage without building a full internal SOC.
Experienced cybersecurity leaders and practitioners support complex security 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.
The best cybersecurity software depends on the organization’s environment, risk priorities, staffing, existing tools, and compliance requirements. Important capabilities may include managed detection and response, endpoint and network visibility, exposure management, vulnerability prioritization, penetration testing, governance, and advisory support. DeepSeas combines these capabilities so organizations can address security operations and broader cyber risk through a coordinated program.
Talk with DeepSeas about your environment, priorities, and security coverage gaps.
Recognition as a top 40 MDR provider.
Recognized as a Leader and top-five provider.
Award for MDR competitive strategy leadership.
Award recognizing global MDR strategy.
Share your security priorities and discuss practical software, services, and support options with DeepSeas.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.