Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using existing security tools where possible.
Bring detection, response, offensive security, exposure management, compliance, and strategic guidance into one coordinated cybersecurity program. DeepSeas helps organizations reduce fragmented tooling, connect security signals across IT, cloud, identity, email, and OT environments, and turn cyber risk into measurable, actionable outcomes. With approximately 30 years of experience and 24/7 monitoring capabilities, your security program can operate with greater clarity and continuity.
Coordinate detection, risk reduction, compliance, testing, response, and advisory capabilities through one integrated security partner.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using existing security tools where possible.
Continuously identify external assets, leaked credentials, vulnerabilities, and attack paths, then prioritize findings by exploitability, business exposure, and threat activity.
Ethical hackers use penetration testing, red teaming, adversary emulation, and social engineering assessments to reveal weaknesses before malicious actors exploit them.
Build and operate governance, risk, and compliance programs with control mapping, evidence packaging, gap assessments, continuous monitoring, and audit support.
Experienced responders support preparation, detection, containment, recovery, forensics, malware analysis, threat research, and post-incident security improvement.
Security leaders receive practical guidance for risk decisions, board reporting, program development, acquisitions, insurance reviews, and security strategy.
Unified cybersecurity platforms connect the capabilities organizations often manage separately: monitoring, response, testing, exposure reduction, threat intelligence, compliance, and advisory. DeepSeas works across the tools and environments you already use, helping teams investigate incidents with broader context instead of reconciling disconnected alerts. The result is a more coordinated security operation with clearer priorities, documented actions, and measurable progress toward reducing cyber risk.
DeepSeas supports nearly 1,000 organizations with proactive, customized, and measurable cybersecurity outcomes.
"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."
Get an expert-led cybersecurity partner that connects technology, people, and services around your actual risk.
Coordinate IT, cloud, operational technology, mobile, and BYOD security through one connected defense approach.
Work with practitioners whose experience spans managed security, offensive testing, advisory, compliance, and incident response.
Bring your existing SIEM, EDR, and CNAPP investments instead of replacing tools to access managed expertise.
Turn detection, exposure reduction, compliance readiness, and response activity into documented security progress.
Experienced cybersecurity practitioners guide strategy, operations, risk, and response.
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 unified security platform brings multiple cybersecurity capabilities into one coordinated operating model. Instead of managing detection, response, exposure management, offensive testing, compliance, and advisory through disconnected providers, organizations can connect those functions through one partner and shared context. This helps security teams prioritize risk, investigate activity across environments, and document what was found, changed, and improved.
Talk with DeepSeas experts about your tools, risks, and cybersecurity priorities.
Named certification held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Recognition as a Leader and top-five provider in 2024.
Award for competitive strategy leadership in MDR.
Recognition for strategy in global MDR best practices.
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