Managed MDR
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, with analysts owning the judgment behind each case.
Managed Extended Detection and Response (MXDR) unifies detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and OT environments. DeepSeas combines AI-driven triage with expert analyst judgment, working inside the tools you already own to reduce alert burden, uncover attack paths, and deliver documented outcomes for security teams across the US.
Integrated managed detection and response across the security environments, telemetry sources, and technologies your organization already uses.
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, with analysts owning the judgment behind each case.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, and unmanaged devices that endpoint agents cannot cover.
Endpoint MDR monitors endpoints and servers continuously, investigates alerts, and supports containment and account actions within the response authority your organization establishes.
Email Threat Detection & Response identifies phishing, business email compromise, malicious links, attachments, and account takeover activity, then connects findings with identity and endpoint context.
Managed SIEM and SIEM-based MDR delivers detection engineering, tuning, investigation, and response through your existing SIEM or a DeepSeas-managed option.
OT and ICS Security Monitoring helps protect industrial environments with human-validated detections and response playbooks built around operational and safety constraints.
MXDR connects telemetry from endpoint, network, cloud, identity, email, SaaS, and OT environments into coordinated investigations. DeepSeas works within the security tools you already own, correlating activity so your team receives completed analysis instead of disconnected tickets. AI handles routine filtering and triage while analysts investigate complex threats, tune detections, and act within the response authority agreed for your environment.
See how integrated monitoring, investigation, and response can turn fragmented security signals into actionable outcomes.
"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 allows my team to deliver the compliance needed to stay up-to-date with all of our governing bodies. Furthermore, we are more confident that our staff, faculty, and students are better protected with DeepSeas as a cybersecurity partner. Without a doubt, DeepSeas is worth every dollar spent. This is our..."
"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 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!"
"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 allows my team to deliver the compliance needed to stay up-to-date with all of our governing bodies. Furthermore, we are more confident that our staff, faculty, and students are better protected with DeepSeas as a cybersecurity partner. Without a doubt, DeepSeas is worth every dollar spent. This is our..."
"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 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!"
"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 allows my team to deliver the compliance needed to stay up-to-date with all of our governing bodies. Furthermore, we are more confident that our staff, faculty, and students are better protected with DeepSeas as a cybersecurity partner. Without a doubt, DeepSeas is worth every dollar spent. This is our..."
"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 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 managed operations, practitioner expertise, and flexible integration for measurable cyber defense.
Keep the SIEM, EDR, CNAPP, and security tools your organization already owns and knows.
AI handles routine triage while experienced analysts investigate complex cases and make response decisions.
Unify endpoint, network, cloud, identity, email, SaaS, mobile, BYOD, and OT visibility.
Review case notes, response actions, and operational evidence with your team and stakeholders.
Experienced cybersecurity practitioners support every stage of managed defense.
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.
MXDR stands for Managed Extended Detection and Response. It is a managed service that combines monitoring, detection, investigation, and response across multiple layers of the environment, such as endpoints, networks, cloud, identity, email, SaaS, and operational technology. Instead of reviewing isolated alerts, MXDR correlates signals and delivers coordinated analysis and action through a specialized external team.
Talk with DeepSeas about your coverage, tools, and response priorities.
Recognized as a top 40 Managed Detection and Response provider by Gartner.
Recognized as a Leader and top-five provider in the 2024 Frost Radar Global Managed Detection and Response Market.
Received the 2024 Best Practices Competitive Strategy Leadership Award for Managed Detection and Response.
Received the 2024 Global MDR Best Practices Award for Strategy.
ISO Lead Auditor certifications held by DeepSeas specialists.
Share your current tools, coverage goals, and response needs so DeepSeas can discuss a practical MXDR approach.
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