Managed Detection and Response (MDR)

Managed Detection and Response (MDR) from DeepSeas combines 24x7 monitoring, investigation, threat hunting, and response across endpoint, network, cloud, identity, email, SaaS, and OT environments. AI handles routine triage while experienced analysts make the decisions that matter, working inside the tools you already own to deliver finished outcomes instead of another queue of alerts.

Cybersecurity analysts monitoring threat activity across enterprise systems

Our Managed Detection and Response (MDR) Services

Integrated MDR capabilities help organizations detect, investigate, contain, and reduce cyber risk across existing security environments.

Endpoint MDR

DeepSeas monitors, investigates, and responds across endpoints and servers using your existing endpoint tooling. Analysts triage events, enrich investigations, and take authorized response actions such as host isolation or account disabling.

Network Detection

Network Detection & Response adds visibility into lateral movement, command and control, data staging, and unmanaged devices. Network telemetry is correlated with endpoint, identity, and cloud activity for a complete investigation.

Managed SIEM MDR

DeepSeas operates detection, tuning, investigation, and response inside your existing SIEM or provides SIEM capabilities with ingestion and storage included. Detection content remains tuned to your environment.

Email Threat Response

Email monitoring identifies phishing, business email compromise, malicious links and attachments, and account takeover activity. Confirmed threats can be removed from inboxes while related identity, endpoint, and cloud activity is investigated.

OT & ICS Monitoring

OT and ICS monitoring applies human-led analysis and jointly developed response playbooks to industrial environments where safety, uptime, and operational constraints shape every response decision.

Threat Hunting

Continuous threat hunting and detection engineering help identify suspicious activity that automated alerts may miss, while keeping detection logic aligned with your environment, industry, and critical assets.

Expert-Led Cyber Defense

Turn Security Alerts Into Finished Work

DeepSeas MDR delivers 24x7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using more than 400 integrated sources without requiring a rip-and-replace. AI filters and correlates routine events, while analysts investigate meaningful activity, tune detections, hunt for threats, and act within the response authority you set. You receive documented actions and reviewable case evidence rather than forwarded tickets.

MDR analyst reviewing a correlated cybersecurity investigation
Evidence Over Alerts

MDR Outcomes

See how continuous detection, response, and security expertise support measurable cyber risk reduction.

"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..."

JIM IBISTER
JIM IBISTER

"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!"

Ed Jones
Ed Jones
The DeepSeas Difference

Why Choose DeepSeas?

DeepSeas combines experienced practitioners, integrated technology, and complete cyber defense around your organization’s actual risk.

24x7 Coverage

Continuous monitoring, detection, investigation, and response from the DeepSeas team.

Your Existing Tools

Bring your own SIEM, EDR, and CNAPP tools without replacing the security stack you already own.

Human Judgment

AI handles routine triage while analysts own investigation decisions and authorized response actions.

Integrated Defense

Connect MDR with advisory, offensive security, threat intelligence, GRC, and exposure management capabilities.

Meet The DeepSeas Team

Experienced cybersecurity practitioners support complex security decisions and operations.

Portrait of Lewie Dunsworth, Chief Executive Officer at DeepSeas

Lewie Dunsworth

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.

Portrait of Keith Robertson, Risk Management and Compliance Executive at DeepSeas

Keith Robertson

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.

Portrait of Sean Duffy, Cybersecurity and Legal Advisor at DeepSeas

Sean Duffy

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.

Portrait of Matt Lammers, CISO and IT Risk Executive at DeepSeas

Matt Lammers

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.

Frequently Asked Questions

What is managed detection and response (MDR) services?

Managed Detection and Response is a cybersecurity service in which a specialized provider continuously monitors security telemetry, investigates suspicious activity, hunts for threats, and responds to confirmed incidents. DeepSeas MDR operates across endpoint, network, cloud, identity, email, SaaS, and OT environments, using AI for routine triage and analysts for investigation and judgment. Response authority is agreed with the client and actions are documented for review.

What does the MDR stand for?

What is MDR in security?

How does DeepSeas MDR respond to security incidents?

Does MDR replace our existing security tools?

What security environments can MDR monitor?

Is MDR suitable for a small security team?

How is MDR different from an MSSP?

Still Have MDR Questions?

Speak with DeepSeas about coverage, response authority, and existing security tools.

Recognized MDR Expertise

Awards and Recognition

Gartner top 40 Managed Detection and Response provider recognition

Gartner Top 40 MDR Provider

Recognized as a top 40 Managed Detection and Response provider by Gartner.

2024 Frost Radar Global Managed Detection and Response recognition

Frost Radar MDR Leader

Recognized as a Leader and top-five provider in the 2024 Frost Radar Global MDR Market.

Frost & Sullivan 2024 Best Practices Competitive Strategy Leadership Award

Frost & Sullivan Award

2024 Best Practices Competitive Strategy Leadership Award for MDR.

2024 Global MDR Best Practices Award for Strategy

Global MDR Best Practices Award

2024 Global MDR Best Practices Award for Strategy.

Strengthen Your Detection and Response

Tell DeepSeas about your environment, existing tools, and security operations goals to explore an MDR approach.

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