Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using your existing security tools and agreed response authority.
Real-time cyber security monitoring helps organizations identify, investigate, and respond to threats before they become costly incidents. DeepSeas combines 24/7 detection and response with network, endpoint, cloud, identity, email, and operational technology visibility. Its expert-led approach supports organizations across the United States with measurable cyber defense, continuous improvement, and security operations that work within the tools they already own.
Continuous monitoring, detection, investigation, response, and exposure reduction across your most important technology environments.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using your existing security tools and agreed response authority.
Endpoint MDR monitors and investigates endpoints and servers continuously, helping analysts triage alerts, enrich investigations, and respond to compromised hosts or accounts within defined customer guidance.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, unmanaged devices, and activity across systems where endpoint agents may not be installed.
DeepSeas operates detection, tuning, investigation, and response through your existing SIEM or a managed SIEM model, integrating log sources and context into a continuous security operation.
Email Threat Detection & Response identifies phishing, business email compromise, malicious links, attachments, and account takeover activity, connecting email findings with identity, endpoint, and cloud investigations.
OT and ICS Security Monitoring helps protect industrial environments with detections and response playbooks developed around operational constraints, safety considerations, and plant team collaboration.
Real-time cyber security monitoring gives your organization an operating layer for identifying, investigating, and responding to threats across the environments attackers use. DeepSeas connects endpoint, network, cloud, identity, email, SaaS, and OT signals so analysts can investigate the full path of an intrusion instead of isolated alerts. The service works with existing tools, supports customized response authority, and produces evidence of actions taken.
DeepSeas helps organizations replace fragmented alerts with coordinated monitoring, investigation, response, and measurable risk reduction.
"DeepSeas is a pleasure to work with. They produce consistent and outstanding results for us and our program, while being thorough, knowledgeable, and easy to work with. We have not had a finding in a certification/re-certification audit in three years across five ISO standards!"
DeepSeas combines experienced practitioners, broad visibility, and flexible operations into one complete cyber defense program.
Continuous monitoring, detection, and response delivered by the DeepSeas team across critical security environments.
Bring-your-own-stack support helps organizations keep established SIEM, EDR, and CNAPP investments in place.
Human analysts own judgment and investigation while automation handles routine filtering, correlation, and triage.
One integrated approach connects monitoring with advisory, offensive security, threat intelligence, and compliance support.
Experienced cybersecurity practitioners support measurable defense across complex environments.
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.
Real-time cyber security monitoring continuously reviews security activity across environments such as endpoints, networks, cloud, identity, email, SaaS, and operational technology. The goal is to identify suspicious behavior, investigate its context, and support response before an intrusion causes greater impact. DeepSeas combines automated triage with analyst judgment so customers receive investigated outcomes rather than a stream of unprocessed alerts.
Speak with DeepSeas about monitoring, detection, and response for your environment.
ISO Lead Auditor certifications held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Named a Leader and top-five provider in the 2024 Frost Radar market.
Frost & Sullivan award for MDR competitive strategy leadership.
Recognition for strategy in global MDR best practices.
Tell DeepSeas about your environment and security priorities so its specialists can discuss monitoring and response options.
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.