Managed Detection Response
DeepSeas MDR provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, with analysts owning investigation and response.
DeepSeas delivers expert-led cyber security monitoring services that help organizations detect threats, investigate suspicious activity, and respond with confidence. With 24/7 monitoring across endpoint, network, cloud, identity, email, SaaS, and OT environments, your team receives finished investigations and measurable outcomes instead of disconnected alerts. Coverage works with the security tools you already own and scales with evolving risk.
Continuous monitoring, investigation, and response across the systems and environments your organization depends on.
DeepSeas MDR provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, with analysts owning investigation and response.
Endpoint MDR monitors endpoints and servers continuously, triages alerts, investigates suspicious activity, and supports containment using the endpoint tooling your team already owns.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, unmanaged devices, and activity across environments where endpoint agents are unavailable.
DeepSeas operates detection, tuning, investigation, and response inside your existing SIEM or provides SIEM capability with integrated ingestion, enrichment, and storage.
Email Threat Detection & Response identifies phishing, business email compromise, malicious links, attachments, and account takeover activity, then coordinates investigation and response.
DeepSeas monitors criminal forums, marketplaces, and underground sources for leaked credentials, infostealer data, access claims, impersonation, and mentions of your organization.
DeepSeas combines automation, threat intelligence, detection engineering, and experienced analysts to turn security telemetry into completed investigations and actionable response. Monitoring can cover endpoint, network, cloud, identity, email, SaaS, mobile, BYOD, and OT environments while working with the tools already deployed in your organization. Your team sets response authority, receives documented case activity, and gains a clearer view of what happened and what should change.
See how continuous monitoring and coordinated response help organizations reduce uncertainty and strengthen cyber resilience.
"In cybersecurity we were not looking for a vendor, we were looking for a trusted partner that could push us, challenge us, and ensure we got better at protecting our systems every day. We found that partner with DeepSeas, and they have helped us be far smarter and better than..."
DeepSeas combines experienced practitioners, broad monitoring coverage, and measurable cyber defense outcomes.
Continuous monitoring, detection, and response delivered by the DeepSeas team around the clock.
Bring-your-own-stack support works with existing SIEM, EDR, and CNAPP investments without forced replacement.
AI handles routine triage while human analysts investigate, make judgments, and guide response decisions.
Monitor endpoint, network, cloud, identity, email, SaaS, mobile, BYOD, and OT environments together.
Experienced cybersecurity practitioners guide monitoring, response, strategy, and risk reduction.
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 threat monitoring is the continuous observation of security activity across systems such as endpoints, networks, cloud environments, identities, email, SaaS, and operational technology. Analysts and automated tools look for suspicious behavior, correlate related signals, investigate potential incidents, and support response. Effective monitoring goes beyond forwarding alerts by adding context, determining what happened, and documenting actions taken.
Speak with DeepSeas specialists about monitoring, detection, and response options.
Named certification held by DeepSeas specialists.
2023 recognition as a top 40 MDR provider.
2024 Frost Radar Leader and top-five provider recognition.
2024 Frost & Sullivan competitive strategy leadership award.
2024 Global MDR best practices strategy award.
Tell DeepSeas about your environment and discuss a monitoring and response approach aligned with your risks.
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